Enter the world of fairy-tale towers, whimsical stairways, crow's nests, zip lines, and suspended rope bridges. Take pleasure in the details of hand-split oak shingles, thatched roofs, and cedar tongue-and-groove interiors. Made of sustainably sourced materials, Blue Forest's magical sanctuaries fit snugly between trees and branches--often incorporating them into the building itself--and sit lightly on the land. From a child's tree house inside a secret garden to party venues for teenagers and adults, this book details 28 imaginative tree houses, some of them accompanied by site plans and...