Ancient Atlantis is the country in the middle of the Atlantic Ocean that is usually referred to as “Atlantis.” The reason that no one could find Atlantis back in the day was because it time-traveled forward to today.
Atlantis is characterized by its classical-age technology that was prevalent during The Second Order. Atlantis has control over certain energy sources lost to time, usually a crystal of some sort. They also have control over technology that controls nature, such as the oceans, and cloaking technology that allows them to hide the whole city-state. An unknown alien race gave them access to this technology that allowed them to time travel forward into the future. It is possible they are the same aliens as the Pyramid Aliens.
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