The first thing you need to know about the Gemäldegalerie is that it’s huge. Seriously: don’t come here unless you’re ready to spend at least two hours wandering through a breathtaking collection of medieval and Renaissance art spanning six centuries and nearly 2 kilometers. You’ll see ancient German triptychs, Dutch masters (including an octagonal room devoted to Rembrandt), and renowned Italian works from Raphael to Caravaggio, among many, many others. Paintings are displayed with minimal info, so get an audio guide (available in English) for the full experience. The Kupferstichkabinett, a collection of drawings, sketches, prints, pastels, and other “art on paper” from the likes of Botticelli, Van Gogh, and Warhol, is in the same building. It’s worth buying a 16€ Kulturforum combination ticket if you’re interested in both and have a half-day to spare.