La Villa Hamster - Nantes, France
Yes, it's exactly what it sounds like: a hamster hotel for humans.
Though you won't be boarding with furry little rodents, you will be staying in a cage-like room with thin, metal bars on the walls and windows to make it feel more like a hamster's home. To go to bed, you have to squat on all fours, and there's a water fountain of sorts in a bottle attached to the wall. Of course, there's also a giant, fully functioning hamster wheel, and you can choose between a toilet and a pile of cedar chips in the bathroom (we recommend the toilet). It might seem inhuman, but apparently there are a lot of wannabe rodents out there; the space is booked almost every night.