4. Tham & Videgard is a Swedish company hiring oly the best designers who are ready to put their most drastic fantasies into reality. One of their creations is The Mirrorcube. The hotel is located in Harads, just 50 minutes from the Arctic Circle. This aluminum construction wraps the base of a single tree. Its mirror walls reflect the surroundings which makes the hotel virtually invisible for people and, due to the infrared layer, visible to birds. Another surprise is that The Mirrorcube is hung around the tree and is only 4x4x4 meters! Inside the hotel you’ll find a bathroom, double bed, terrace and lounge. Climb the 12-meter-long bridge to get inside and enjoy your stay.