Zeus' throne room is in the temple that resides at the top.
A mountain called Mount Olympus is also located in Greece on Earth, which presumably got its' name from the mythological home of the gods, and according to myth, it was the home of the gods. Although this is later seen to be untrue, since Mount Olympus is located on Caltos.
Mount Olympus was regarded as the "home of the gods", specifically of the Twelve Olympians.
new SuperFriends (1978):