From Sawse: 

“This is about as strange as it gets. In a quaint public park in Lintz, Austria, three drain pipes have been transformed into mini hotel rooms. Christened the Das Park Hotel, each room comes with a double bed, a bed light, linens and a side table. The guests can pay what they feel a stay in the room is worth. As for amenities, guests have to use the park’s public bathrooms and dine at nearby restaurants. The hotel rooms are supposedly decorated with a few cozy amenities and items that might remind one of home. The “rooms” even come with electronic key locks which can only be opened with a key code; this ensures that all of your belongings are safe while you visit the local attractions. This is no doubt a great idea and an ingenious rethinking of the uses of something as simple and not very attractive as a drain pipe. However, people with claustrophobia are warned to consider the ramifications of sleeping in such tight quarters. The hotel is open between May and October, and anyone who fancies a quirky night in a bizarre place, really should check this one out.”