Alnwick Garden Treehouse

The Duke and Duchess of Northumberland commissioned this spectacular tree house to be the jewel in the crown at Alnwick Gardens, the largest public open gardens in Europe. The tree house accommodates a 120 seat restaurant, two classrooms, juice bar, and visitor facilities; all connected via tree top walk ways and rope bridges. The project was completed in 2005, and is constructed from sustainably sourced cedar from Canadian, English and Scottish pine. (landarchs.com).