Here's the bad news about the DasParkHotel in Austria: the rooms are very small, with only enough room for a single bed, a lamp, and small mural, and also they're made out of old sewer pipes. But here's the good news: you only have to pay whatever you can afford. And you get to tell people that you slept in a sewer pipe, which, looking at these pictures, really doesn't seem all that bad. Overall, not too unattractive of a deal.
· Sleepaway In A Sewer Pipe At Dasparkhotels in Austria And Germany [design you trust]
· Sleep in a Sewer Pipe on Your Next Vacation [Mental Floss]