This elegant store close to Kongens Nytorv and the bustling waterside bars of Nyhavn showcases two floors of classic 20th-century Danish design. Even if you’re not shopping for a new Arne Jacobsen Egg Chair or a Hans Wegner Wishbone Chair, it’s worth stopping by just to understand why Danish furniture from the middle of the last century has such a strong hold on design aficionados around the world. The pieces are expertly displayed, so Klassik is almost like a mini-museum—one in which the exhibitions are for sale, usually for a significant sum of money.