Palais Lieben-Auspitz

The Organization for International Economic Relations (OiER) (in German: Organisation für Internationale Wirtschaftsbeziehungen) is a global non-profit, non-governmental organization based in Vienna, Austria. It is a network that focuses on building partnerships and identifying trends in a global context and addressing key future-oriented issues in areas of sustainability, innovation, communication, environment, energy and mobility.

Café Landtmann is a traditional Viennese café located on the Ringstraße at the corner of Lowelstraße 22 in the Innere Stadt first district in Vienna, Austria.

The Pasqualati House, notable for being a residence of Ludwig van Beethoven, is located in the 1st district of Vienna's Inner City, on the corner of Mölker Bastei 8 and Schreyvogelgasse 16, in an exposed position on the ramp of the former town fortifications. The building, completed in 1797 and home to the composer on several occasions, houses a Beethoven museum in an apartment adjoining the one Beethoven regularly occupied.

The Burgtheater (German: [ˈbʊʁk.teˌaːtɐ]; literally:"Castle Theater" but alternatively translated as "(Imperial) Court Theater"), originally known as K.K. Theater an der Burg, then until 1918 as the K.K. Hofburgtheater, is the national theater of Austria in Vienna. It is the most important German-language theater and one of the most important theatres in the world. The Burgtheater was opened in 1741 and has become known as "die Burg" by the Viennese population; its theater company has created a traditional style and speech typical of Burgtheater performances.

Palais Ephrussi is a former Ringstraßenpalais in Vienna. It was built for the Ephrussi family of financiers by Theophil Freiherr von Hansen, the architect of the Austrian Parliament Building. It is on the Ringstrasse, specifically the Universitätsring (formerly Doctor-Karl-Lueger-Ring), opposite the Votivkirche.

The Liechtenstein City Palace (German: Stadtpalais Liechtenstein) is a residential building at Bankgasse 9, in the first district of Vienna, Innere Stadt. The palace was built from 1692 to 1705 by the Italian architect Domenico Martinelli and the Swiss architect Gabriele Gabrieli.The building is one of two palaces in Vienna belonging to the princely family of Liechtenstein. The other grand house still owned by the family in Vienna is the Liechtenstein Garden Palace. The palace escaped destruction during World War II, when bombs fell nearby. It is still used as a private residence by the princely family. After restoration in 2013, the building contains the 19th century portion of the princely art collection, whereas artworks from the 16th to 18th centuries are displayed at the Liechtenstein Garden Palace.

The Main building (German: Hauptgebäude der Universität Wien, commonly shortened to Hauptuni) is the central headquarters of the University of Vienna, it is located in the first district of Vienna and faces the so called Universitätsring. It was designed by Heinrich Ferstel and built in 1873.

The University of Vienna (German: Universität Wien) is a public research university located in Vienna, Austria. Founded by Duke Rudolph IV in 1365, it is the oldest university in the modern German-speaking world and among the largest institutions of higher learning in Europe. The university is associated with 16 Nobel prize winners and has been the home to many scholars of historical and academic importance.

Palais Kinsky is a Baroque palace in central Vienna, Austria. It was originally built for Count Wirich Philipp von Daun, the garrison commander whose son Leopold became a Field Marshal of Empress Maria Theresa. The palace was later bought by the Kinsky family of Bohemia, and it is sometimes called the Palais Daun-Kinsky.

Palais Porcia is a former urban residence in the western quarter of the Innere Stadt of Vienna, Austria. It stands at 23, Herrengasse between Palais Kinsky and Palais Trautmansdorff and across Palais Harrach. The palace was built in 1546 for the descendants of Count Gabriel von Salamanca-Ortenburg. It was representative of the simple Renaissance style that emerged in Vienna in the middle of the 16th century. In the 17th and later centuries it was extensively remodelled in Baroque and Rococo styles but the inner court still contains an early Renaissance arcade. As of 2010, Palais Porcia houses the Administrative Library of the Austrian Federal Chancellery.

Rathauspark is a 40,000 square meter park in Vienna, Austria, located across the street from the Vienna City Hall.

The Rathausplatz is a square in Vienna, Austria. The Rathausplatz is in the Innere Stadt, near the new Rathaus, after which it is named. Because of its size, its design and the architecture of the surrounding buildings it is one of the most important squares in central Vienna.