When Zeus freed the Cyclopes from their imprisonment in the Underworld, they gifted him the lightning bolt to use in his war against the Titans. They also forged Poseidon’s trident and Hades’s helmet. Zeus had his weapon but he needed more than that to overthrow the Titans, and so he forged an all-seeing eye and placed it at the top of a tower—a lighthouse. It allowed him to see across land and sea, even time.
