"Potsdam’s only fish restaurant, Der Butt—literally, "the butt"—gets it name from the unfortunate moniker of the famously rotund Prussian King Friedrich Wilhelm IV. But don't let the name deceive you: This is a serious place. Situated in a historic house with a tavern from 1842, Der Butt is formal and buttoned up, with pale peach walls, wood chairs covered in striped pillows, and cream linen tablecloths serving as the backdrop for a menu that includes a wide range of upmarket seafood—Norwegian salmon, dorade, and even lobster. Our tip? Order something local, like the pike perch or the eel, both of which are sourced from the Havel River that runs through the city." - Liz Humphreys