You could call this TREE-mendous! It could be the world's tallest treehouse - measuring a massive 30m tall it's taken more than 14 years to build.
The towering structure is in Tennessee in south-eastern America. It's been built by minister Horace Burgess who says God told him to build it, a bit like Noah building the ark.
The amazing creation is built around an oak tree. Made out of bits of recycled wood and about 258,000 nails, it has 10 floors, a church area and it even has its own basketball court!
Visitors drop in to climb up to the top of the treehouse in Crossville which Mr Burgess says is the tallest in the world.
At the top is a special chime made from old oxygen cylinders, weighing a whopping 2,590kg! And if that's not enough Mr Burgess is still adding to the treehouse!