In 1967, archaeologists unearthed Akrotiri on the island Santorini in the southern Aegean Sea. They believe this ancient town was occupied 3,500 years ago and very well could be the lost city of Atlantis. Echoing some of Plato's descriptions of Atlantis, researchers have discovered multi-tiered houses well before their time and what might be the earliest domestic toilet in the world. Watch the video via Smithsonian below.

Feature image via YouTube/Smithsonian