Yas Viceroy

This 499-room hotel has brave-new-world bravado and future-is-now daring to spare: two 12-story steel-and-glass towers connected by a bridge, under which fantastically fast cars speed by during Formula One races. Most dramatically, architects Rashid and Couture draped the hotel, top down, with a sinuous, biomorphic "veil" that acts like an environmentally responsive second skin, by day reflecting the sky and the surroundings, by night lit by a spectacular LED system.