Fortress of Solitude (UE-43)

"This is a place where you can learn away from the prying eyes of the world lessons about who you really are and why you were sent here."

- Jor-El

Fortress of Solitude, or simply known as The Fortress, is the storage facility and base of operations of Superman.

History
At some point in the 2000s, Superman started storing his enemies' dangerous weapons in the Fortress. During the period, he also proposed to Lois Lane.