OK, maybe all that time we spent laughing at those old guys on the beach with their metal detectors, we were actually the idiots.

For seven years Mary Hannaby has been taking six-hour long walks every Sunday with her son and her metal detector. She finally found something buried about 4 inches underground that is nearly 500 years old and worth a fortune.

Mary struck gold -- literally -- when she found a part of a solid-gold pendant depicting the Holy Trinity. Experts estimate that it was made in 15th-century, and is worth around £250,000 ($412,000 in US dollars). Who looks stupid now?

In the U.K., the Treasure Act of 1996 says that anything over 300 years old must be reported, and the finders will be offered market value for it by museums, who have first dibs. Fortunately for Mary, the economy is in shambles and the museum can't afford it, so it's off to auction where it could fetch significantly more money.

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