Say what you want about the architecture, but don’t miss the Design Museum. It moved from the South Bank to Kensington, and the gift shop is amazing. It’s filled with artful items you won’t find anywhere else: tile coasters, paper vases, print rugs from Nepal. Lots of limited-edition prints relating to the shows, too. A lot of the museum is free, and the John Pawson-designed building, with its minimal marble and oak interiors, is quite a sight in itself.