Is it a treehouse?
We set this up in Conroe on Saturday and it took us almost 4 hours to complete the assembly.
The house is 6' wide by 8' deep, and has a wrap around porch all on a 6' tower. Bunk beds are inside with trap door access through the floor and a hidden compartment in the floor as well. The tall post out in front is set up to attach a pully with rope and a basket or bucket.
This was alot more involved than what I normally do. But hey, when you enjoy what you do, it just makes it all the more fun! (Click on the pic for a larger view.)