Swedish firm Tham and Videgard Hansson Arkitekter is the genius behind this incredibly cool and nearly invisible treehouse. Located in northern Sweden, the treehouse serves as a hotel. The mirrored glass walls provide what I can only imagine to be a stunning 360 degree view. How incredibly relaxing a night's stay would be here!
(found via Treehugger / image via Tham adn Videgard Hansson Arkitekter)