Fanon:Atlantos

Atlantos is a underwater city that is mostly ancient ruins at 5,000 meters deep underwater, once visited by the Submarine Pontus, and Iron Orion, on a scientific journey to the deep ocean. The City was built by the Atlantosian Civilization, a considerably advanced civilization at the time and they even were coming up with methods to travel to the moon, and although it was very possible they never went as they didn't have the technology at the time. The city has a crystal known as the Ralthrone.