Taking to the Trees in Tree-House Hotels

Tree houses are no longer just for kids. Several hotels have opened that invite guests to try the tree house experience, with some grown-up twists. Costa Rica’s Tree House Lodge is sustainably built with solar heating, structured around a 100-year-old Sangrillo tree, and The Aviary in Lenox, Massachusetts, is a luxury take on the trend, with an antique soaking tub and a state-of-the-art audio system. Would you stay in a tree house?