There's something magical about treehouses. Perched amid the greenery, seemingly closer to the sky than the ground, these epicenters of endless adventures inspire whimsical visions in the young and ...

Mike Fitzgerald spent more than two years and at least $600,000 building a treehouse. The treehouse is supported by four trees, and it's connected to a patio on another tree via a swinging bridge. Now ...

Pete Nelson of Nelson Treehouse & Supply in Fall City has built almost 400 treehouses across the world, starting when he was 7 with his dad. Now 62, he is something of a grandfather and ambassador to ...