There are a multitude of other museums in Vienna, including the Albertina, the Military History Museum, the Technical Museum, the Burial Museum, the Museum of Art Fakes, the KunstHausWien, the Sigmund Freud Museum, and the Mozarthaus Vienna. The museums on the history of the city, including the former Historical Museum of the City of Vienna on Karlsplatz, the Hermesvilla, the residences and birthplaces of various composers, the Museum of the Romans, and the Vienna Clock Museum, are now gathered together under the group umbrella Vienna Museum. In addition there are museums dedicated to Vienna's individual districts. They provide a record of individual struggles, achievements and tragedy as the city grew and survived two world wars. For readers seeking family histories these are good sources of information.
A variety of architectural styles can be found in Vienna, such as the Romanesque Ruprechtskirche and the Baroque Karlskirche. Styles range from classicist buildings to modern architecture. Art Nouveau left many architectural traces in Vienna. The Secession, Karlsplatz Stadtbahn Station, and the Kirche am Steinhof by Otto Wagner rank among the best known examples of Art Nouveau in the world.
Concurrent to the Art Nouveau movement was the Wiener Moderne, during which some architects shunned the use of extraneous adornment. A key architect of this period was Adolf Loos, whose works include the Looshaus (1909), the Kärntner Bar or American Bar (1908) and the Steiner House (1910).
The Hundertwasserhaus by Friedensreich Hundertwasser, designed to counter the clinical look of modern architecture, is one of Vienna's most popular tourist attractions. Another example of unique architecture is the Wotrubakirche by sculptor Fritz Wotruba. In the 1990s, a number of quarters were adapted and extensive building projects were implemented in the areas around Donaustadt (north of the Danube) and Wienerberg (in