Mental Floss

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Who pulled off these heists has never officially been determined.

Whether they were tunneling into vaults or blowing their way into them through church walls, these thieves were brazen—and in each case, whodunit remains a mystery.

Jane Alexander




















 You better knock, knock, knock ... on wood.

Discover the origins of the classic phrase 'knock on wood,' which could be tied to a Victorian-era children's game or have more direct ties to old pagan traditions.

Matt Soniak