Tartessos was an ancient Iberian civilization located in modern-day Spain. Known for its mineral wealth and seafaring, the Tartessians worshipped deities like Astarte, and their legends included tales of hidden treasure and powerful sea gods.They were skilled in trade and metallurgy, interacting with Phoenician and Greek traders. Tartessos has remained shrouded in mystery, with some legends suggesting it was the basis for the Atlantis myth.