Marunouchi’s big sister hotel occupies the top six floors of a 39-storey skyscraper and accommodates 190 bedrooms. Within a stone’s throw of the Gardens of the Imperial Palace, it has an especially regal, and green outlook. Inside are two restaurants with outdoor terraces and a 1920s-era bar; a spa featuring a 3-D installation that was inspired by Issey Miyake textiles; a 20-metre swimming pool; and traditional soaking baths. For the best suites, book one on the 34th to the 38th floors — these were artfully designed by Jean-Michel Gathy of Denniston.