There's always more to add, but I think these previous responses would be helpful:

From /u/toldinstone: In Greek mythology, the gods are said to live atop Mount Olympus. Olympus is an actual real mountain in Greece. Did the Ancient Greeks never climb the mountain? Wouldn't it have been obvious that no actual gods lived there?

From /u/Daeres: How did the ancient Greeks treat/view Mount Olympus?