A legend, used as a political allegory by the ancient philosopher Plato. But over the centuries, countless amateur historians and archaeologists have asserted that the lost island really existed – and one of them may have actually located it.

Parcasters – If you lived through the Titanic, would you ever work on a ship again? Violet Jessop did, and you won’t believe what happened. Check out our two episode series on Miss Unsinkable, at parcast.com/survival

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