If your idea of an unforgettable vacation includes igloos, yak hair tents or underground cave dwellings, you may want to consider reserving a room at one of these extreme hotels from around the world. Located in one-of-a-kind destinations from the Arctic Circle to a remote Patagonian rainforest, these adventurous accommodations offer unbelievable perks — stunning Northern Lights views, sea kayaking and thermal baths, to name a few. 

However, while some of these lodgings may take you to the edges of the Earth, all offer comfortable living quarters and top-flight amenities that make guests feel right at home.