Hotels having unusual features of the lodging / immediate environment
Treehouse hotels
Some Hotels with living trees as structural elements, for example the Costa Rica Tree House in the Gandoca-Manzanillo Wildlife Refuge, Costa Rica; the Treetops Hotel in Aberdare National Park, Kenya; the Ariau Towers near Manaus, Brazil, on the Rio Negro in the Amazon; and Bayram's Tree Houses in Olympos, Turkey.
Bunker hotels
The Null Stern Hotel in Teufen, Appenzellerland, Switzerland and the Concrete Mushrooms in Albania are former nuclear bunkers transformed into hotels.
Cave hotels
The Cuevas Pedro Antonio de Alarcón (named after the author) in Guadix, Spain, as well as several hotels in Cappadocia, Turkey, are notable for being built into natural cave formations, some underground rooms. The Desert Cave Hotel in Coober Pedy, South Australia with the remains of an opal mine.
Capsule hotels
Capsule hotels are a type of economical hotel that are found in Japan, where people sleep in stacks of rectangular containers.
Ice and snow hotels
The Ice Hotel in Jukkasjärvi, Sweden, and the Hotel de Glace in Duschenay, Canada, melt every spring and are rebuilt each winter; and the Lainio Snow Hotel is part of a snow village near Ylläs, Finland;the Mammut Snow Hotel in Finland is located within the walls of the Kemi snow castle;
Garden hotels
Garden hotels, famous for their gardens before they became hotels, include Gravetye Manor, the home of garden designer William Robinson, and Cliveden, designed by Charles Barry with a rose garden by Geoffrey Jellicoe.
Underwater hotels
Some hotels built underwater, such as Utter Inn in Lake Mälaren, Sweden. Hydropolis, would have had suites on the bottom of the Persian Gulf, and Jules Undersea Lodge in Key Largo, one interesting is Florida requires scuba diving to access its rooms.
