Mirror Cube is only one of many astonishing works of architecture that is rentable at Treehotel. There is a Tree UFO with an entry ladder that looks like it appeared in a comic book. Inside, star patterns adorn the furnishings and portholes give way to the forest around it. There’s another cube structure that is wrapped with reclaimed limbs that also line the forest floor. There’s even a raised red cabin that recalls Grimm fairy tales of centuries past. If this isn’t the world’s most playful hotel, we don’t know what is. We adore Treehotel for its modern approach to a childhood imagination, in that each building reflects a dream that most of us experienced in our past. A night in a hotel like this might be the closest return to that imagination that we could hope for. [via yatzer, images by Peter Lundstrom]