The Mystery of Al Capone's Vaults is a two-hour live American television special that was broadcast in syndication on April 21, 1986, and hosted by Geraldo Rivera.

It centered on the live opening of a walled-off underground room in the Lexington Hotel in Chicago once owned by crime lord Al Capone, which turned out to be empty except for debris.

[3] When the vault was finally opened, the only things found inside were dirt and several empty bottles, including one Rivera claimed was for moonshine bathtub gin.

After several attempts to dig further into the vault, Rivera admitted defeat and voiced his disappointment to the viewers, apologizing as he thanked the excavation team for their efforts.

Although it gathered criticism and became infamous for its disappointing ending, the program was the most-watched syndicated television special that year with an estimated audience of 30 million.

[5] Geraldo said on the April 20, 2016, edition of the Fox News Channel program The Five that he went right across the street and got "tequila drunk" after the special aired, then went back to his hotel room and put the "Do Not Disturb" sign on the door.