Rumors about the Sasquatch have circulated for centuries, and while there has never been any conclusive evidence to prove that Bigfoot is real, a number of reputable scientists believe it’s possible.

Geologist and art historian Ann Pizzorusso believes that the background of the Mona Lisa depicts Lecco, a small town in the Lombardy region of Italy.

Measuring 2.5 inches long, this head would have been part of an axe likely wielded by a member of the Globular Amphora culture that remains largely mysterious to this day.

Qubilah Shabazz was convinced that Nation of Islam leader Louis Farrakhan was responsible for the 1965 assassination of her father, Malcolm X — and in 1995, she was arrested for conspiring to have Farrakhan killed.

Incisions made by Neanderthals on this prehistoric bear bone seem to be deliberate and non-utilitarian, suggesting they are an early example of symbolic art.

While excavating the site of a future school building, Albanian archaeologists discovered the ruins of ancient villas where Roman elites once lived — and one held an elaborate indoor pool.

Leo Tanguma's murals at Denver International Airport weren't supposed to be controversial — but fate had other plans.

This discovery marks the first time that pre-Ottoman structures have been unearthed at Visegrád Castle — and research is just getting underway.

Contractors investigated an unusual extension cord on the roof of a Family Fare store in Midland, Michigan — and discovered a 34-year-old woman living inside the grocery store sign.

Staggeringly high levels of lead were found in Ludwig van Beethoven's hair, as well as mercury and arsenic.

Several residents of a town in Brazil claimed that their city was overrun with aliens in 1996 — and that the government covered it up. But is there any proof?