Treehouses are one of the coolest things about being a kid — and this is one cool treehouse. The Scallywag Sloop Treehouse ($20,500) is an oversize, pirate-themed treehouse that will make your backyard "the place" for your child and their friends. It features a 5'x6' custom "pirate" themed club house, an 8'x6' galleon-style pirate bow, a swing, a fireman's pole, a ship's wheel, and a ship's mast w/crow's nest on the roof. Options include a spiral slide, and a cast-iron cannon. So cool, we're thinking about getting one and renaming it "Uncrate HQ."