...but back to treehouses.
if you adore treehouses + are in the tennessee/nashville area, be sure to make your way to crossville. in crossville you'll find Horace Burgess's 97 foot, ten story, dream of all my dreams, behemoth of a treehouse. i don't care how far out to your way it is, it's more than worth the trip. i will defintely make it back there someday. i especially love what i like to call the tornado staircase [because it looks like hundreds of wood scraps frozen in a tornado, devouring the side of a giant treehouse].
you may find directions + reviews at roadside america.
more photos may be found here.