Old Catholic Church of Austria

The Margraviate of Austria (German: Markgrafschaft Österreich) was a medieval frontier march, centered along the river Danube, between the river Enns and the Vienna Woods (Wienerwald), within the territory of modern Austrian provinces of Upper Austria and Lower Austria. It existed from c. 972 to 1156.It stemmed from the previous frontier structures, initially created for the defense of eastern Bavarian borders against the Avars, who were defeated and conquered during the reign of Charlemagne (d. 814). Throughout the Frankish period, the region was under jurisdiction of Eastern Frankish rulers, who held Bavaria and appointed frontier commanders (counts) in eastern regions.At the beginning of the 10th century, the region was raided by Magyars. They were defeated in the Battle of Lechfeld (955) and gradual German reconquest of the region began. By 972, newly retaken frontier regions along the river Danube were reorganized into a frontier county (margraviate) that became known as the Bavarian Eastern March (Latin: marcha orientalis) or Ostarrichi (German: Österreich). The first known margrave was Burkhard, who is mentioned in sources since 972.Since 976, it was governed by margraves from the Franconian noble House of Babenberg. The margraviate was protecting the eastern borders of the Holy Roman Empire, towards neighbouring Hungary. It became an Imperial State in its own right, when the Austrian margraves were elevated to Dukes of Austria in 1156.

The Archduchy of Austria (German: Erzherzogtum Österreich) was a major principality of the Holy Roman Empire and the nucleus of the Habsburg monarchy. With its capital at Vienna, the archduchy was centered at the Empire's southeastern periphery. Its present name originates from the Frankish term Oustrich – Eastern Kingdom (east of the Frankish kingdom). The archduchy developed out of the Bavarian Margraviate of Austria, elevated to the Duchy of Austria according to the 1156 Privilegium Minus by Emperor Frederick Barbarossa. The House of Habsburg came to the Austrian throne in Vienna in 1282 and in 1453 Emperor Frederick III, also the ruler of Austria, officially adopted the archducal title. From the 15th century onwards, all Holy Roman Emperors but one were Austrian archdukes and with the acquisition of the Bohemian and Hungarian crown lands in 1526, the Habsburg hereditary lands became the centre of a major European power.The archduchy's history as an imperial state ended with the dissolution of the Holy Roman Empire in 1806. It was replaced with the Lower and Upper Austria crown lands of the Austrian Empire.

The Duchy of Austria (German: Herzogtum Österreich) was a medieval principality of the Holy Roman Empire, established in 1156 by the Privilegium Minus, when the Margraviate of Austria (Ostarrîchi) was detached from Bavaria and elevated to a duchy in its own right. After the ruling dukes of the House of Babenberg became extinct in male line, there was as much as three decades of rivalry on inheritance and rulership, until the German king Rudolf I took over the dominion as the first monarch of the Habsburg dynasty in 1276. Thereafter, Austria became the patrimony and ancestral homeland of the dynasty and the nucleus of the Habsburg monarchy. In 1453, the archducal title of the Austrian rulers, invented by Duke Rudolf IV in the forged Privilegium Maius of 1359, was officially acknowledged by the Habsburg emperor Frederick III.

The Wiener Börse AG (also known as the Vienna Stock Exchange) is a bourse situated in Vienna, Austria. The exchange also owns and operates the Prague Stock Exchange, and holds stakes in energy exchanges and clearing houses. It provides market infrastructure to other exchanges in Central, Eastern, and Southeastern Europe (Budapest, Zagreb, and Ljubljana), and collects and distributes stock market data and calculates the most important indices of the region. The Austrian Traded Index (ATX), the leading index of Wiener Börse, tracks the price of its blue chips in real time. The ATX composition is updated every March and September, mainly based on a stock's capitalized free float and trading volumes.

The Rossauer Barracks (in German, Rossauer Kaserne) is a barracks in the 9th district of Vienna, in the Rossau quarter of the city. It serves as the headquarters of the Defense Ministry. In January 2020 the Rossauer Barracks has been renamed to Bernardis-Schmid-Kaserne.

Catholic Social Academy of Austria (Katholische Sozialakademie Österreichs) was established by the Austrian Catholic Bishops' Conference in 1958 with its seat in Vienna, Austria. Its mission is to "research, mediate, and convey the use of Catholic social teaching in practice" and it does this mainly through social analysis, political adult education, and organizational development.

Ringturm (Ring Tower) is a prominent skyscraper in Vienna, Austria, and is the headquarters of the Vienna Insurance Group. It was built from 1953 to 1955 after a design by Erich Boltenstern at the Schottenring. The tower is 73 m (240 ft) tall, with 12,000 m2 (130,000 sq ft) of office space, and is the second highest building within the Vienna Ringstraße, after the Stephansdom. It is a venue for architecture exhibitions, and is known for being turned into a piece of art annually, wrapped in cloth designed by notable artists including Robert Hammerstiel, Xenia Hausner, Arnulf Rainer and Mihael Milunović.

Vienna Insurance Group AG Wiener Versicherung Gruppe (VIG) with its registered office in Vienna, Austria, is one of the largest international insurance groups in Central and Eastern Europe with approximately 25,000 employees.

The Hohe Brücke (High Bridge) is a bridge across the Tiefer Graben (Deep Ditch) in Innere Stadt, Vienna, Austria. It links the two parts of Wipplingerstraße, which used to be separated by a brook. For a long time there has been a lottery next to the bridge, and many people in Vienna remember their old advertising slogan, Über die Hohe Brücke führt der Weg zum Glücke ("Across the High Bridge leads the path to luck"). The current bridge was designed by Josef Hackhofer and built in 1903–04.

Schottentor is a station on U2 of the Vienna U-Bahn. It is located in the Innere Stadt District, below Maria-Theresien-Straße. It opened in 1980. The station is an interchange node between U2 and 10 tramway lines, 5 of them using a small underground section as a terminal station. The name of the station derives from the Schottentor, a former city gate in the Vienna city wall, which was demolished in 1860.

The Ringtheater was a popular theater in Vienna, Austria. In 1881, it was destroyed in the Ringtheater fire that killed 384 people. The site now houses the federal headquarters of police for Vienna.

The Ringtheater fire occurred on 8 December 1881, in the popular Viennese Ringtheater, named after the road it was located at, the Schottenring. Before the fire, the privately run theater, with a capacity of about 1700 visitors, suffered from financial problems. Officially, 384 people perished in the fire, though there are higher estimates. For example, the Prussian-born author and encyclopedian Ludwig Julius Eisenberg (1858–1910) claims that up to one thousand could have been killed.