This must be one of the weirdest hotels in the world: Bubbletree. Sleeping in a Bubble, it might look a bit weird (and there is a lack of privacy off course), but is a pretty smart idea. The bubbles are placed at beatiful places in the outdoors, so you have a roof above you, but you can still enjoy all the great views!The Bubble is large enough for a family. You can find the bubbles in France, in the Bouches Du Rhône, Haute Savoie,Isère, Loir et Cher, Vendée and on Corsica. Prices start at 200 euros a night.