Sheraton Huzhou Hot Spring Resort (Huzhou, China)
The price tag: $207/night
The only “doughnut hotel” that we’ve ever heard of, the Sheraton Huzhou Hot Spring Resort is an oval-shaped wonder set on the Taihu Lake between Nanjing and Shanghai. It has 29 floors in total, with two of them being underwater. Not that we’re ones to complain, but really? All that architecture and only two floors under water? Come on.