Excerpt from original article:
This treehouse by Japanese builder Kobayahsi Takashi was constructed with the express purpose of communicating with outer space. “A sparkling beacon among treetops, it is easy to imagine the dome succeeding at its mission to make contact with alien life,”
…. You can reach the house by a wood ladder and at halfway of your climbing you can stop on a terrace and have a view on the nature.
Link to original article
My comment: There are lots and lots of treehouses online, from very small to very large. Takahashi has built many treehouses. This one is my favorite – high off the ground, small, and elegant!!