Batcave
The Batcave is the fictional secret lair of Batman. It is on the foundation of Wayne Manor. There are two ways into the cave, one is through a waterfall on the back of the cave and the other is a built-in elevator that leads from the library of Wayne Manor to the bridge of the cave. It holds all of Batman's secrets, gadgets, the Batmobile, and a real gorge. The cave also has millions of bats.