Hessisches Landesmuseum in Darmstadt

You're standing at the Hessisches Landesmuseum in Darmstadt, one of the oldest public museums in Germany. On one side is the palace, on the other the Herrngarten park. Take a good look at the building. It isn't a neat block at all, but a lopsided cluster of wings, roofs and towers. That's deliberate. Architect Alfred Messel started work in 1897 and gave each collection a space in a matching style. So the Roman antiquities got a wing in Pompeian style, the medieval treasures got Romanesque corridors and chapels, and the old weapons a Late Gothic hall. All those styles are still held together by a fairly strict grid. See the tower on the south-east corner? That's the library. Messel based it on an eighteenth-century design for the palace next door, a plan that was only partly built.