Haha, I feel like these are over-done, but I decided for my first major structure I would make a Pyramid. I feel like it has all of the essentials, a room to spawn animals, a throne room with a cake dispenser and a death pit, a room to grow crops and reeds (bamboo or whatever it's called now-a-days) a tree room, a pool room. It has an armory that includes a jail cell (that can be opened from the inside), a firing range, and a reverse firing range where arrows are fired at you. The is also a pool room but there is no life guard on duty. There is a checker/chess board but checkers is the only real practical one to play. There is a kitchen, a gallery, and a library. There is an underground bunker/bomb shelter which leads to a subway system that will take you far, far away. In the very center of this harrowing structure is a mysterious pit that drops you into a short obstacle course where you must avoid dying at the hands of lava.
A bit of a disclaimer: This pyramid is not historically accurate. Sorry. :(
Criticism would be appreciated, but I won't take it well. I will in fact; write a blog post that totally trashes you. haha. But seriously, help me. . . help you.

Additional Notes

I believe I uploaded my world save correctly, this is my first time, but tell me if I messed it up.