This one-bedroom Airbnb rental is the quiet getaway you need, right in the Capital Region's backyard. When I was a kid building my old treehouses, I think this is how I dreamed they would turn out. Of course, they never worked out like this Middle Grove, New York beauty. But that is the great thing about this Airbnb rental for $275 a night: as an adult, the dream treehouse getaway is a reality in this hidden gem.