Living Room, Light Hardwood Floor, and Chair Light ash flooring and birch plywood walls create a light interior that contrasts the dark, charred exterior wood. Here in the lounge space, simple furniture such as the Scandia Chair by Hans Brattrud and a central pellet stove create a calm, inviting environment. A floor-to-ceiling window, facing north, is your best bet for seeing the Aurora Borealis.  Photo 4 of 8 in Go Stargazing in Snøhetta’s Towering Addition to Sweden’s Treehotel