Nicknamed the ‘doughnut hotel’, the Sheraton Huzhou Hot Spring Resort is on the Taihu Lake inbetween Nanjing and Shanghai. The magnet-shaped hotel was conceived by architect Ma Tansong, who has worked with Zaha Hadid in London and is responsible for the rippling Absolute Towers in Mississauga, Canada. The 27 floors above water, and two below (to create a complete oval) feature luxury trimmings, including a lobby paved with White Jade from Afghanistan and Tiger’s Eye Stone from Brazil.