God told Horace Burgess to build a treehouse and that he did, the world's biggest to be exact. The Minister's Treehouse is located near Crossville, Tennessee and measures around 100-feet tall. The treehouse and church were an ongoing building project that spanned 14 years. The 10-story structure was built without blueprints around a living white oak tree and uses at least six other trees for support. Kristin Sweeting's photographs of the treehouse are truly stunning. You can (and should) view more on her blog.