One of my fondest memories of being with John Lennon (Yoko, I hope you remember) was one day in 1969, when he was drawing what he envisioned a house should be. He said it should be made of mirrors so it reflects the sky, trees, grass, nature. He said it should be invisible so a plane could fly over and only see the ground, and here it is 41 years later. I always liked and remembered shall I say, that reflection. Yoko and he agreed that it should be round in shape, similar to an igloo. No corners just curves. A bit different than this but the same idea.

They said it couldn’t be done. When we first wrote about the almost invisible tree house to be built in Sweden by Tham & Videgard, 899 commenters thought it was computer-generated eye candy, impossible to build, and death for birds.
But the architects built it, one of six units in a “Treehotel,” which recently opened 40 miles south of the Arctic Circle in Sweden.
And now I just found this…. (I don’t think John was contemplating this as well)

This one-way glass stall looks like a mirror to an outsider, but completely transparent to an insider, leading to a nerve-wracking bathroom experience.