Top 3 Ancient Underground Labyrinths | Cities of the Underworld *2 Hour Marathon*

Embark on an extraordinary journey as we delve into the hidden worlds beneath the bustling surfaces of Tokyo, Jerusalem, and Vietnam. Learn more in this full episode marathon of Cities of the Underworld.

Watch all new episodes of Cities of the Underworld, returning soon, and stay up to date on all of your favorite The HISTORY Channel shows at history.com/schedule.

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