Berlin's coolest art museum, the Hamburger Bahnhof, is different from a lot of other museums in that it was originally built as a railway station! Once it stopped being a railway station, the building became a museum dedicated to railways, and then in 1996, became the contemporary art museum it is today. If you're ever around the area, it's definitely one of the must-visits! See drawings by Beuys, sketches by Andy Warhol, and more artworks including videos, design, and photography!