Organization for International Economic Relations

Palais Lieben-Auspitz is a Ringstraßenpalais in Vienna, Vienna, located in the city's Innere Stadt.Originally built for the Auspitz family in the 1872, later the Lieben family also lived there. Unlike traditional, baroque noble palaces in Vienna, the Palais Lieben-Auspitz was built in the late 19th century and is therefore called a Ringstraßenpalais. It is up to five storeys high and built in the neo-baroque style typical of its time. The palace housed the Salon of Berta Zuckerkandl, a meeting place for intellectuals and artists. Located on the street level is the Café Landtmann.

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.

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.

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.

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.

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.

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 Harrach is a Baroque palace in Vienna, Austria. It was owned by the noble Harrach family. The building was extensively renovated and restored in the late 1990s, and it houses offices and shops today. Count Ferdinand Bonaventura I von Harrach bought a ruined edifice on this site in the late 17th century, which was replaced by a new one designed by Domenico Martinelli in 1696–98. From 1870 to 1970, it housed Aloys Thomas Raimund von Harrach's picture collection (now in Schloss Rohrau). The palace was sold to the municipality of Vienna in 1975.

The Schottenstift (English: Scottish Abbey), formally called Benediktinerabtei unserer Lieben Frau zu den Schotten (English: Benedictine Abbey of Our Dear Lady of the Scots), is a Catholic monastery founded in Vienna in 1155 when Henry II of Austria brought Irish monks to Vienna. The monks did not come directly from Ireland, but came instead from Scots Monastery in Regensburg, Germany. Since 1625, the abbey has been a member of the Austrian Congregation, now within the Benedictine Confederation.