Following Prince Eugene's death, Empress Maria Theresa renovated the Upper Belvedere to serve as a venue for exhibiting the royal art treasures. One of the oldest public museums in history, the interiors of this palace show off Alexander the Great's victories. The Upper Belvedere also includes the largest collection of Gustav Klimt paintings in the world, as well as works by Oskar Kokoschka, Egon Schiele, Ferdinand Waldmuller, and other masters of the Art Nouveau movement.