Named after its original location in London, NYC's Dover Street Market features seven small floors of cutting-edge fashions by big time designers and a few up-and-comers. Rei Kawakubo of Comme des Garcons carefully curated the merch, which includes loads of exclusives you won't find any where else. Shopping here is like a visiting a contemporary art gallery, thanks to the high design of the clothing as well as cool art, such as the 60-foot sleeve of yarn by street knitter Magda Sayeg, featured throughout the space.