In 976, Leopold I of Babenberg became count of the Eastern March, a district centered on the Danube on the eastern frontier of Bavaria. This initial district grew into the duchy of Austria. Each succeeding Babenberg ruler expanded the march east along the Danube, eventually encompassing Vienna and the lands immediately east. In 1145, Henry II, Duke of Austria moved the Babenberg family residence from Klosterneuburg in Lower Austria to Vienna. From that time, Vienna remained the center of the Babenberg dynasty.
The once Celtic settlement of Vedunia was converted by the Romans into the castrum and canaba Vindobona (province of Pannonia) in the 1st century, and was elevated to a municipium with Roman city rights in 212. This was followed by a time in the sphere of influece of the Lombards and later the Pannonian Avars, when Slavs formed the majority of the region's population. From the 8th century on, the region was settled by the Baiuvarii. In 976, the Babenbergs established the Margraviate of Austria. In 1221, Vienna was granted city rights by Leopold VI. The reign of the Habsburgs started in 1278. In 1558, Vienna became the capital of the Holy Roman Empire, which it remained until 1806. It was the capital of the Austrian Empire from 1804 to 1867, and of the Cisleithanian part of Austria-Hungary from 1867 to 1918, and subsequently became the capital of Austria.
In 1440, Vienna became the resident city of the Habsburg dynasty. It eventually grew to become the de facto capital of the Holy Roman Empire (800–1806) in 1437 and a cultural center for arts and science, music and fine cuisine. Hungary occupied the city between 1485 and 1490.
In the 16th and 17th centuries, Christian forces twice stopped Ottoman armies outside Vienna, in the 1529 siege of Vienna and the 1683 Battle of Vienna. The Great Plague of Vienna ravaged the city in 1679, killing nearly a third of its population.
The Viennese coffee house (Kaffeehaus) dates back to the Austro-Hungarian empire. The Vienna intelligentsia treated Viennese cafés like a living room. The first Viennese café was opened in 1685 by Armenian businessman Johannes Diodato. Café culture flourished in Vienna in the early 19th century. Notable patrons included political figures Joseph Stalin, Adolf Hitler, Leon Trotsky and Josip Broz Tito, who all lived in Vienna in 1913, as well as scientists, writers and artists such as Sigmund Freud, Stefan Zweig, Egon Schiele and Gustav Klimt.
The grounds of the imperial Schönbrunn Palace contain an 18th-century park which includes the Schönbrunn Zoo, which was founded in 1752, making it the world's oldest zoo still in operation. The zoo is one of the few to house giant pandas. The park also features the Palmenhaus Schönbrunn, a large greenhouse with around 4,500 plant species.
In 1804, during the Napoleonic Wars, Vienna became the capital of the newly formed Austrian Empire. The city continued to play a major role in European and world politics, including hosting the Congress of Vienna in 1814–15. The city also saw major uprisings against Habsburg rule in 1848, which were suppressed. After the Austro-Hungarian Compromise of 1867, Vienna remained the capital of what became the Austro-Hungarian Empire. The city functioned as a center of classical music, for which the title of the First Viennese School (Haydn/Mozart/Beethoven) is sometimes applied.
The heart and historical city of Vienna, a large part of today's Innere Stadt, was a fortress surrounded by fields to defend itself from potential attackers. In 1850, Vienna with the consent of the emperor annexed 34 surrounding villages, called Vorstädte, into the city limits (districts no. 2 to 8, after 1861 with the separation of Margareten from Wieden no. 2 to 9). Consequently, the walls were razed after 1857, making it possible for the city center to expand.
From 1850 to 1890, city limits in the West and the South mainly followed another wall called Linienwall at which a road toll called the Liniengeld was charged. Outside this wall from 1873 onwards a ring road called The Gürtel was built. In 1890 it was decided to integrate 33 suburbs (called Vororte) beyond that wall into Vienna by 1 January 1892 and transform them into districts no. 11 to 19 (district no. 10 had been constituted in 1874); hence the Linienwall was torn down beginning in 1894. In 1900, district no. 20, Brigittenau, was created by separating the area from the 2nd district.
Vienna is considered the center of LGBT life in Austria. The city has an action plan against homophobic discrimination and, since 1998, has an anti-discrimination unit within the city's administration. The city has several cafés, bars and clubs frequented by LGBT people. Among the most prominent is Café Savoy, which is a traditional coffee house built in 1896. In 2015, the city introduced traffic lights with same-sex couples before hosting the Eurovision Song Contest that year, which attracted media attention internationally. Every year in June, Vienna Pride is organized. In 2019, when the pride parade was also hosting Europride, it attracted 500.000 visitors.
The Viennese tram network has existed since 1865; the first line was electrified in 1897. There are currently 28 lines with 1071 stops that operate on a network of 176,9 km. The trams move at about 15 km/h. The fleet consists of both high-floor and low-floor vehicles, however the high-floor models, which are not air-conditioned, are in the process of being replaced by more modern, accessible trams. The modern models are air-conditioned and suitable for disabled users.
From 1850 to 1904, Vienna had expanded only on the eastern bank of the Danube, following the main branch before the regulation of 1868–1875, i.e., the Old Danube of today. In 1904, the 21st district was created by integrating Floridsdorf, Kagran, Stadlau, Hirschstetten, Aspern and other villages on the left bank of the Danube into Vienna, in 1910 Strebersdorf followed. On 15 October 1938 the Nazis created Great Vienna with 26 districts by merging 97 towns and villages into Vienna, 80 of which were returned to surrounding Lower Austria in 1954. Since then Vienna has had 23 districts.
Buses were first introduced to the city in 1907. Currently, 117 bus lines operate in Vienna during the day. 47 of these are run by the Wiener Linien, who also set the routes and timetables, the rest by subcontractors such as Dr. Richard, Gschwindl and Blaguss. The Wiener Linien also operate 20 night buses.
In the twenty years before the First World War and until 1918, Viennese politics were shaped by the Christian Social Party. In particular, long-term mayor Karl Lueger was able to not apply the general voting rights for men introduced by and for the parliament of imperial Austria, the Reichsrat, in 1907, thereby excluding most of the working class from taking part in decisions. For Adolf Hitler, who spent some years in Vienna, Lueger was a teacher of how to use antisemitism in politics.
Because of the industrialization and migration from other parts of the Empire, the population of Vienna increased sharply during its time as the capital of Austria-Hungary (1867–1918). In 1910, Vienna had more than two million inhabitants, and was the third largest city in Europe after London and Paris. Around the start of the 20th century, Vienna was the city with the second-largest Czech population in the world (after Prague). After World War I, many Czechs and Hungarians returned to their ancestral countries, resulting in a decline in the Viennese population. After World War II, the Soviets used force to repatriate key workers of Czech, Slovak and Hungarian origins to return to their ethnic homelands to further the Soviet bloc economy. The population of Vienna generally stagnated or declined through the remainder of the 20th century, not demonstrating significant growth again until the census of 2000. In 2020, Vienna's population remained significantly below its reported peak in 1916.
In their place, a broad boulevard called the Ringstraße was built, along which imposing public and private buildings, monuments, and parks were created by the start of the 20th century. These buildings include the Rathaus (town hall), the Burgtheater, the University, the Parliament, the twin museums of natural history and fine art, and the Staatsoper. It is also the location of New Wing of the Hofburg, the former imperial palace, and the Imperial and Royal War Ministry finished in 1913. The mainly Gothic Stephansdom is located at the center of the city, on Stephansplatz. The Imperial-Royal Government set up the Vienna City Renovation Fund (Wiener Stadterneuerungsfonds) and sold many building lots to private investors, thereby partly financing public construction works.
During the latter half of the 19th century, Vienna developed what had previously been the bastions and glacis into the Ringstraße, a new boulevard surrounding the historical town and a major prestige project. Former suburbs were incorporated, and the city of Vienna grew dramatically. In 1918, after World War I, Vienna became capital of the Republic of German-Austria, and then in 1919 of the First Republic of Austria.
The city of Vienna became the center of socialist politics from 1919 to 1934, a period referred to as "Red Vienna" (Das rote Wien). After a new breed of socialist politicians won the local elections they engaged in a brief but ambitious municipal experiment. Social democrats had won an absolute majority in the May 1919 municipal election and ruled the city council with 100 of the 165 seats. Jakob Reumann was appointed by the city council as city mayor. The theoretical foundations of so-called Austromarxism were established by Otto Bauer, Karl Renner, and Max Adler.
The Prater is a large public park in Leopoldstadt. Within the park is the Wurstelprater (which is commonly referred to as just “the Prater”), a public amusement park which contains the Wiener Riesenrad, a 64.75 metre tall Ferris Wheel, as well as various rides, roller coasters, carousels and a Madame Tussauds. The rest of the park is covered in by the forest. The Hauptallee, a wide, car-free alley lined with horse chestnut trees, runs through the park. Eliud Kipchoge broke the marathon distance record on this road in the INEOS 1:59 Challenge in October 2019. The Prater also is home to the Liliputbahn, a railway line primarily used by tourists, and a planetarium. It was the location of the 1873 Vienna World's Fair. In 1931, the Ernst-Happel-Stadion, formerly known as the Praterstadion, was opened in the Prater.
Vienna is today considered the center of the Social Democratic Party (SPÖ). During the period of the First Republic (1918–1934), the Vienna Social Democrats undertook many social reforms. At that time, Vienna's municipal policy was admired by Socialists throughout Europe, who therefore referred to the city as "Red Vienna" (Rotes Wien). In February 1934 troops of the Austrian federal government under Engelbert Dollfuss, who had closed down the first chamber of the federal parliament, the Nationalrat, in 1933, and paramilitary socialist organizations were engaged in the Austrian Civil War, which led to the ban of the Social Democratic party.
In 1938, after a triumphant entry into Austria, the Austrian-born German Chancellor Adolf Hitler spoke to the Austrian Germans from the balcony of the Neue Burg, a part of the Hofburg at the Heldenplatz. In the ensuing days the new Nazi authorities oversaw the harassment of Viennese Jews, the looting of their homes, and their on-going deportation and murder. Between 1938 (after the Anschluss) and the end of the Second World War in 1945, Vienna lost its status as a capital to Berlin, because Austria ceased to exist and became part of Nazi Germany.
There was a lack of airfields in the Western sectors, and authorities drafted contingency plans to deal with such a blockade. Plans included the laying down of metal landing mats at Schönbrunn. The Soviets did not blockade the city. The Potsdam Agreement included written rights of land access to the western sectors, whereas no such written guarantees had covered the western sectors of Berlin. Also, there was no precipitating event to cause a blockade in Vienna. (In Berlin, the Western powers had introduced a new currency in early 1948 to economically freeze out the Soviets.) During the 10 years of the four-power occupation, Vienna became a hotbed for international espionage between the Western and Eastern blocs. In the wake of the Berlin Blockade, the Cold War in Vienna took on a different dynamic. While accepting that Germany and Berlin would be divided, the Soviets had decided against allowing the same state of affairs to arise in Austria and Vienna. Here, the Soviet forces controlled districts 2, 4, 10, 20, 21, and 22 and all areas incorporated into Vienna in 1938.
During the November pogroms on 9 November 1938, 92 synagogues in Vienna were destroyed. Only the city temple in the 1st district was spared, as the data of all Jews in Vienna were collected in the adjacent archives. Adolf Eichmann held office in the expropriated Palais Rothschild and organized the expropriation and persecution of the Jews. Of the almost 200,000 Jews in Vienna, around 120,000 were driven to emigrate and around 65,000 were killed. After the end of the war, the Jewish population of Vienna was only about 5,000.
On 2 April 1945, the Soviet Red Army launched the Vienna Offensive against the Germans holding the city and besieged it. British and American air-raids, as well as artillery duels between the Red Army and the SS and Wehrmacht, crippled infrastructure, such as tram services and water- and power-distribution, and destroyed or damaged thousands of public and private buildings. The Red Army was helped by an Austrian resistance group in the German Wehrmacht. The group tried under the code name Radetzky to prevent the destruction and fighting in the city. Vienna fell eleven days later. At the end of the war, Austria again became separated from Germany, and Vienna regained its status as the capital city of the Republic of Austria, but the Soviet hold on the city remained until 1955, when Austria regained full sovereignty.
After the war, Vienna was part of Soviet-occupied Eastern Austria until September 1945. As in Berlin, Vienna in September 1945 was divided into sectors by the four powers: the US, the UK, France, and the Soviet Union and supervised by an Allied Commission. The four-power occupation of Vienna differed in one key respect from that of Berlin: the central area of the city, known as the first district, constituted an international zone in which the four powers alternated control on a monthly basis. The control was policed by the four powers on a de facto day-to-day basis, the famous "four soldiers in a jeep" method. The Berlin Blockade of 1948 raised Western concerns that the Soviets might repeat the blockade in Vienna. The matter was raised in the UK House of Commons by MP Anthony Nutting, who asked: "What plans have the Government for dealing with a similar situation in Vienna? Vienna is in exactly a similar position to Berlin."
Alongside international and intergovernmental organizations, there are dozens of charitable organizations based in Vienna. One such organization is the network of SOS Children's Villages, founded by Hermann Gmeiner in 1949. Today, SOS Children's Villages are active in 132 countries and territories worldwide. Others include Help Afghan School Children Organization (HASCO).
Barbed wire fences were installed around the perimeter of West Berlin in 1953, but not in Vienna. By 1955, the Soviets, by signing the Austrian State Treaty, agreed to relinquish their occupation zones in Eastern Austria as well as their sector in Vienna. In exchange they required that Austria declare its permanent neutrality after the allied powers had left the country. Thus they ensured that Austria would not be a member of NATO and that NATO forces would therefore not have direct communications between Italy and West Germany.
The four-power control of Vienna lasted until the Austrian State Treaty was signed in May 1955. That year, after years of reconstruction and restoration, the State Opera and the Burgtheater, both on the Ringstraße, reopened to the public. The Soviet Union signed the State Treaty only after having been provided with a political guarantee by the federal government to declare Austria's neutrality after the withdrawal of the allied troops. This law of neutrality, passed in late October 1955 (and not the State Treaty itself), ensured that modern Austria would align with neither NATO nor the Soviet bloc, and is considered one of the reasons for Austria's delayed entry into the European Union in 1995.
The Vienna's English Theatre (VET) is an English theater in Vienna. It was founded in 1963 and is located in the 8th Vienna's district. It is the oldest English-language theater in continental Europe.
Vienna is the seat of the Metropolitan Roman Catholic Archdiocese of Vienna, in which is also vested the exempt Ordinariate for Byzantine-Rite Catholics in Austria; its Archbishop is Cardinal Christoph Schönborn. Many Catholic Churches in central Vienna feature performances of religious or other music, including masses sung to classical music and organ. Some of Vienna's most significant historical buildings are Catholic churches, including the St. Stephen's Cathedral (Stephansdom), Karlskirche, Peterskirche and the Votivkirche. On the banks of the Danube, there is a Buddhist Peace Pagoda, built in 1983 by the monks and nuns of Nipponzan Myohoji.
Since the fall of the Iron Curtain in 1989, Vienna has expanded its position as gateway to Eastern Europe. 300 international companies have their Eastern European headquarters in Vienna and its environs. Among them are Hewlett-Packard, Henkel, Baxalta and Siemens.
In the 1996 City Council election, the SPÖ lost its overall majority in the 100-seat chamber, winning 43 seats and 39.15% of the vote. The SPÖ had held an outright majority at every free municipal election since 1919. In 1996 the Freedom Party of Austria (FPÖ), which won 29 seats (up from 21 in 1991), beat the ÖVP into third place for the second time running. From 1996 to 2001, the SPÖ governed Vienna in a coalition with the ÖVP. In 2001 the SPÖ regained the overall majority with 52 seats and 46.91% of the vote; in October 2005, this majority was increased further to 55 seats (49.09%). In course of the 2010 city council elections the SPÖ lost their overall majority again and consequently forged a coalition with the Green Party – the first SPÖ/Green coalition in Austria. This coalition was maintained following the 2015 election. Following the 2020 election, the SPÖ forged a coalition with NEOS – The New Austria and Liberal Forum.
The cycling network in the city spans 1.721 kilometres, however, this figure counts bidirectional bike paths twice and includes on-road cycle-lanes which are also shared with motor vehicles. The network is constantly being expanded and upgraded, especially in the outer areas, such as Donaustadt. Bike use in the city has been rising, from just 3% in 1993 to 10% in 2023.
In the 1990s a number of quarters were adapted and extensive building projects were implemented in the areas around Donaustadt and Wienerberg. Vienna has seen numerous architecture projects completed which combine modern architectural elements with old buildings, such as the remodeling and revitalization of the old Gasometer in 2001.
Until the beginning of the 20th century, Vienna was the largest German-speaking city in the world, and before the splitting of the Austro-Hungarian Empire in World War I, the city had two million inhabitants. Today, it is the second-largest German-speaking city after Berlin. Vienna is host to many major international organizations, including the United Nations, OPEC and the OSCE. In 2001, the city center was designated a UNESCO World Heritage Site. In July 2017 it was moved to the list of World Heritage in Danger.
In a 2005 study of 127 world cities, the Economist Intelligence Unit ranked the city first (tied with Vancouver and San Francisco) for the world's most livable cities. Between 2011 and 2015, Vienna was ranked second, behind Melbourne. Monocle's 2015 "Quality of Life Survey" ranked Vienna second on a list of the top 25 cities in the world "to make a base within". Monocle's 2012 "Quality of Life Survey" ranked Vienna fourth on a list of the top 25 cities in the world "to make a base within" (up from sixth in 2011 and eighth in 2010). The UN-Habitat classified Vienna as the most prosperous city in the world in 2012–2013. The city was ranked 1st globally for its culture of innovation in 2007 and 2008, and sixth globally (out of 256 cities) in the 2014 Innovation Cities Index, which analyzed 162 indicators in covering three areas: culture, infrastructure, and markets. Between 2005 and 2010, Vienna was the world's number-one destination for international congresses and conventions. It attracts over 6.8 million tourists a year.
The new Vienna Central Station (Hauptbahnhof) was opened in October 2014. Construction began in June 2007 and was due to last until December 2015. The station is served by 1,100 trains with 145,000 passengers. There is a shopping center with approximately 90 shops and restaurants. In the vicinity of the station a new district is emerging with 550,000 m (5,920,000 sq ft) office space and 5,000 apartments until 2020.
In 2011 74.3% of Viennese households were connected with broadband, 79% were in possession of a computer. According to the broadband strategy of the city, full broadband coverage will be reached by 2020.
The mayor of Vienna announced the Smart City Wien initiative in March 2011 after the Austrian Climate and Energy Fund decided to fund a project under the same heading. The Vienna city administration engaged with a broad range of stakeholders and published the Smart City Wien action plan.
The Viennese sector for information and communication technologies is comparable in size with the sector in Helsinki, Milan or Munich and thus among Europe's largest IT locations. In 2012 8,962 IT businesses with a workforce of 64,223 were located in the Vienna Region. The main products are instruments and appliances for measuring, testing and navigation as well as electronic components. More than ⅔ of the enterprises provide IT services. Among the biggest IT firms in Vienna are Kapsch, Beko Engineering & Informatics, air traffic control experts Frequentis, Cisco Systems Austria, Hewlett-Packard, Microsoft Austria, IBM Austria and Samsung Electronics Austria.
Vienna is served by Vienna International Airport, located 18 km southeast of the city center next to the town of Schwechat. The airport handled approximately 29.5 million passengers in 2023. Following lengthy negotiations with surrounding communities, the airport will be expanded to increase its capacity by adding a third runway. The airport is undergoing a major expansion, including a new terminal building that opened in 2012 to prepare for an increase in passengers. Another possibility is to use Bratislava Airport, Slovakia, located approximately 60 km away.
Other sports clubs include the Raiffeisen Vikings Vienna (American football), who won the Eurobowl title 4 times in a row between 2004 and 2007 and had a perfect season in 2013. The Aon Hotvolleys Vienna (volleyball), the Vienna Wanderers (baseball), who won the 2012 and 2013 Championship of the Austrian Baseball League, and the Vienna Capitals (ice hockey). Vienna was also where the European Handball Federation (EHF) was founded. There are also three rugby clubs in the city; Vienna Celtic, the oldest rugby club in Austria, RC Donau, and Stade Viennois
The DC Towers are located on the northern bank of the Danube and were completed in 2013.
Vienna generates 28.6% of Austria's gross domestic product (GDP). The service sector dominates Vienna's economy. The average unemployment rate in Vienna is 4.9% and the private service sector provides 75% of all jobs. The city improved its position from 2012 on the ranking of the most economically powerful cities reaching number nine on the listing in 2015. Of the top 500 Austrian firms measured by turnover 203 are headquartered in Vienna. The number of international businesses in Vienna is growing. In 2014 159 and in 2015 175 international firms established offices in Vienna.
Vienna regularly hosts urban planning conferences and is often used as a case study by urban planners. The highest wooden skyscraper in the world, "HoHo Wien", was built within 3 years, starting in 2015. In recent years a syndicate housing movement has established itself in Vienna, Linz, Salzburg, and Innsbruck.
Based on information provided to city officials by various religious organizations about their membership, Vienna's Statistical Yearbook 2019 reports in 2018 an estimated 610,269 Roman Catholics, or 32.3% of the population, and 200,000 (10.4%) Muslims, 70,298 (3.7%) Orthodox, 57,502 (3.0%) other Christians, and 9,504 (0.5%) other religions. A study conducted by the Vienna Institute of Demography estimated the 2018 proportions to be 34% Catholic, 30% unaffiliated, 15% Muslim, 10% Orthodox, 4% Protestant, and 6% other religions.
To facilitate tapping the economic potential of the multiple facettes of the life sciences at Austria's capital, the Austrian Federal Ministry for Digital and Economic Affairs and the local government of City of Vienna have joined forces: Since 2002, the LISAvienna platform is available as a central contact point. It provides free business support services at the interface of the Austrian federal promotional bank, Austria Wirtschaftsservice and the Vienna Business Agency and collects data that inform policy making. The main academic hot spots in Vienna are the Life Science Center Muthgasse with the University of Natural Resources and Life Sciences (BOKU), the Austrian Institute of Technology, the University of Veterinary Medicine, the AKH Vienna with the MedUni Vienna and the Vienna Biocenter. Central European University, a graduate institution expelled from Budapest in the midst of a Hungarian government steps to take control of academic and research organizations, welcomes the first class of students to its new Vienna campus in 2019.
In 2022 the International Congress and Convention Association (ICCA) ranked Vienna 1st in the world for association meetings. The Union of International Associations (UIA) ranked Vienna 5th in the world for 2019 with 306 international meetings, behind Singapore, Brussels, Seoul and Paris. The city's largest conference center, the Austria Center Vienna (ACV) has a total capacity for around 22,800 people and is situated next to the United Nations Office at Vienna. Other centers are the Messe Wien Exhibition & Congress Center (up to 3,000 people) and the Hofburg Palace (up to 4,900 people).
There were 17.3 million overnight stays in Vienna in 2023. The top ten incoming markets in 2023 were Germany, the rest of Austria, the United States, Italy, the United Kingdom, Spain, France, Poland, Switzerland and Romania.
Seestadt Aspern in Vienna's Donaustadt district is one of the largest urban expansion projects of Europe. A 5 hectare artificial lake, offices, apartments and a subway station within walking distance are supposed to attract 20,000 new citizens when construction is completed in 2028.