Lolly Shera's Fall City treehouse, which she uses as an art studio, has power, insulation, plug-in heat, alder paneling, stairs and a deck. It was built in 2002 as a project for TreeHouse Workshop ...

“Welcome to the Twisted Sassafras treehouse,” Craig Heisserer said as we walked up the treehouse stairs. “We felt like it was the trees really that made this place so special,” Heisserer said.