Tokyo's luxury hotel bars outdo themselves to compete with one another but the Mandarin Oriental's might just be our favourite: managing to be both cool (with sleek surfaces, crisp geometry and floor-to-ceiling windows) and comfy (with some slouchy seats in lush textiles). Oh, and those views over the city from the 37th floor. Reservations recommended.
Original cocktails (¥2750) and mocktails (¥2090) made to perfection, plus a deep whiskey list; 15% service charge