Always wanted to sleep in something unusual? In Amsterdam you can have an art-sleep-experience at the UrbanCampsite Amsterdam. Objects to sleep in with names like Trampotent,  Bedbug and Kite Cabin. In the middle of the campsite there is the Tribal Toilet Tower by Atelier van Lieshout. A self-sufficient installation with septic tanks, showers, toilets, and a self-watering system for plants. This summer until the end of August you can book your fun room via Airbnb.