X was the name of a Muisca tribal chief who covered himself with gold dust and, as an initiation rite, dove into a highland lake. Later it became the name of a legendary "Lost City of Gold", which fascinated explorers since the days of the Spanish Conquistadors. No evidence for its existence has been found.

Imagined as a place, the X became a kingdom, an empire, and the city of this legendary golden king.
Give me X.

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