The ancient Greek philosopher Plato once wrote that Atlantis — everyone's favorite lost island civilization ... Plato placed the island city-state near the modern-day Strait of Gibraltar ...

When Ignatius Donnelly published his 1882 book Atlantis: The Antediluvian World, a new wave of scholars, conspiracy theorists, and believers developed an interest in the fabled lost city.

For decades, researchers and treasure hunters alike have been trying to determine if the lost city of Atlantis could be found ...