The Curse of Oak Island: ANCIENT TUNNEL UNEARTHED at Lot 21 (Part 2) (Season 7) | History

Tuesday nights on The History Channel, dive into the biggest night in mystery. The Curse of Oak Island at 9pm, and The Bermuda Triangle at 10pm, only on The History Channel.
The Laginas encounter a rock obstruction while exploring a man-made tunnel, and believe it may have been placed to obscure treasure, in this clip from Season 7, "Marks X the Spot". #OakIsland
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