Schmetterlinghaus

This magnificent historic library was designed by Johann Bernhard Fischer von Erlach and built in 1726. As well as the spectacular room itself, you can see temporary exhibitions on various historical subjects.

Yet another example of the gruesome divide-and-conquer burial strategy of the Habsburg dynasty. It is said that other dynasties waged countless wars to acquire new lands, but "you, happy Austria, marry". Even in death, the Habsburgs placated three different churches with the honor of caring for their remains. The best known, the Kapuzinergruft, contains their actual bodies. St Stephens holds their innards (intestines and other parts taken out during the preservation process). But the Augustinerkirche holds, in the Herzgruft (Heart Crypt), all the Habsburgs' hearts. The tradition began in 1627 with Emperor Ferdinand IV, who wanted to "lay his heart at the feet of the Mother of God", literally. His heart, and those of his descendants, are preserved in silver jars which are carefully cared for by the Augustinian friars who run the church. When the renovation was underway it was found that the preservative in some of the caskets had evaporated over the years, leaving nothing but a dried-out, mummified heart.

A cinema for showing specially curated films and retrospective.

An unusual museum dedicated to the work of the Vienna School of Fantastic Realism (Wiener Schule des Phantastischen Realismus), highlighting works by artists Ernst Fuchs, Arik Brauer, Rudolf Hausner, Wolfgang Hutter and Fritz Janschka. An extra section of the museum displays paintings by international artists, and the first floor is devoted to rotating special exhibits.

The newest and largest section of the Imperial Palace. It contains the Welt Museum Wien, the Papyrus Museum, and three branches of the Museum of Fine Arts.

Once a palace, it is now the most popular exhibition space in Vienna, mainly for traditional modern art. The building itself is an experience as well. It is home to a valuable drawing collection, including many works of the German Renaissance painter, Dürer.