This is The Mirrorcube, an almost invisible tree house you can stay in in Sweden. The mirrors reflect the surroundings, creating a camouflage to hide the tree house.
According to the hotel’s site, the cube has been coated with a film that birds can see to keep them from flying into it. Here’s the inside:
The bummer part: it costs over $4,000 a night to stay in this hotel. That’s a lot of dough to spend the night in a mirror-covered cube, but it’s still way cool, none-the-less. (Via Yahoo)