The Caspian Sea is actually a lake. The Caspian Sea might look like an ocean, but it is really the world’s largest lake. Completely surrounded by land, it has no natural ocean connection. People once thought it was part of the sea, and a Greek philosopher named it after the Caspian people near the Caucasus Mountains. Today satellites confirm it is fully enclosed.#CaspianSea #GeographyFacts #WorldLakes #History #Nature #DidYouKnow | Esploure Geo