The Mirrorcube

Where: Harads, Sweden

What It Is: A lightweight aluminum 4 x 4 x 4–meter box suspended around a tree trunk and covered in mirrors. Accommodates two people at a time, with a double bed, a small bathroom, a living room and a roof terrace. Access to the cabin is by a rope bridge connected to the next tree.

Why It's Unique: Camouflaged within the tree canopy, the one-way mirrors provide a 360-degree view of the surroundings. To prevent birds from colliding with the reflective glass, an ultraviolet color visible only to birds is laminated onto the glass.