Have you seen this “hotel” before? The cute and cool sleep pipes which designed by Austrian designer Andreas Strauss are located in a park next to the Danube River in Ottensheim, Austria.

The drain pipes has a window, bed and electricity but no toilet. Anyway, you still can go to nearby public toilets to take a shower. In addition, you can pay any amount that you like when you stay in this unique”hotel”. For sure, as high as possible! It’s really a cool and incredible idea, right?