NEED TO KNOW

Travis Kelce has a box of archived items stored in SubTropolis, a cave 150 feet below the ground in Kansas City that doubles as the world’s largest underground business complex

PEOPLE got an exclusive look inside the 1,260-acre space, developed by Lamar Hunt, which was created through the mining of a 270-million-year-old limestone deposit

Kelce, Patrick Mahomes and more of the Kansas City Chiefs team explored the underground archives for the first time as seen in ESPN’s new documentary, The Kingdom

Travis Kelce has a vault of his own.

The Kansas City Chiefs tight end, 35, has a hidden box tucked deep down in SubTropolis, a massive cave 150 feet below the ground preserving items that are significant to his standout NFL career.

The zinger? Kelce didn’t even know this col

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