Though hotels are all similar in that they all have beds and other accommodations to make staying there much more homelike, there are some very unique hotels in various parts of the world that challenge the concept of the traditional hotel.

The unique treetop hotels in Costa Rica, Kenya and other parts of the world where the hotels are built with very large living trees making up a substantial part of the hotel structure. The treetop hotel in Kenya is built into the trees surrounding a watering hole for the many species of animals that forage there. When you leave the main dining room to go back to your room you are always accompanied by a guard for protection from wild predators. The Ariau Towers in Brazil, near the city of Manaus is in the middle of the Amazon on the Rio Negro and is a similar type of living tree hotel.

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Ariau Amazon Towers is another unique hotel, located 35 miles from Manaus, Brazil where the Rio Negro and Ariau Creek meet. Built entirely at the level of the Rainforest Canopy, Ariau's towers are linked together by 4 miles of strong wooden catwalks. This architectural wonder affords visitors a unique communion with the regions teeming plant and animal life while leaving the fragile eco-system completely undisturbed. Bill gates invested in the hotel and had modern telephone / internet connections installed.

Straight out of Neromancer, the Sci-Fi book by William Gibson, but only for the Japanese as of yet, the unique capsule hotels are an economy type of hotel with extremely high occupancy capabilities. Most capsule hotel compartments are only about 6 ½ feet by 4 feet by a little over 3 feet. These hotels are not recommended for large or very tall people. This amount of space certainly gives one enough room to read or sleep, but not much else. Of course if you've got wireless internet the possibilities are considerably expanded.