Across cultures and continents, certain mysteries refuse to be forgotten. Whether involving disappearances, unexplained ...

Add Yahoo as a preferred source to see more of our stories on Google. The world is filled with ancient unexplained mysteries that capture the imagination, challenging scientists, scholars, and ...

Seeing is believing, but what about hearing? Since the 1970s, a small percentage of people all over the world have detected a mysterious sound just on the edge of their auditory range. Some folks ...

A famous thief walks away with a masterpiece, and it's never seen again. A pilot vanishes over the ocean. A strange signal from space is heard just once. The 24 mysteries you’re about to read are more ...

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There are lots of unsolved mysteries in the world of math, and many of them start off with a deceptively simple premise, like ...