Beatriz Flamini spent 500 days alone in a cave in Montril, Spain for an experiment on the effects of long-term solitude on the human mind and body.

Queensland teen Daniel Morcombe was missing for eight years before police were finally able to track down the convicted sex offender who abducted and murdered him in 2003.

Investigators say that the newlywed bride's ex-lover planted a bomb inside a wedding gift after becoming enraged that she agreed to marry another man.

One of the Guanajuato Mummies on display at a tourism fair in Mexico City reportedly showed signs of "fungal growths" — and the glass case it was in may not have been enough to stop the spores from spreading.

The Miami Seaquarium announced that 57-year-old Lolita, also known as Tokitae, will be relocated to the waters of the Pacific Northwest, where trainers hope she will one day reunite with her family.

Excavations of an ancient coastal village in Israel revealed a hook from at least 4000 B.C.E. that may be one of the first copper fishing tools ever produced in the area.

Harley McCourt had been struggling with his mental health leading up to his disappearance, and says he has limited memory of his months away from home.

The extraordinarily well-preserved bison likely died around 8,000 years ago — and experts hope they can use its DNA to revive the extinct species.

Researchers found an impressive ecosystem of "alien" microorganisms in the radioactive Königstein mine in Germany.

The boys entered the sewer while playing at Clove Lakes Park in Staten Island — and were lost for about an hour before they were finally rescued by the New York Fire Department.

A restoration team discovered this rare depiction of the complete Egyptian zodiac while sifting through grime covering the walls and ceiling of the Temple of Esna in Upper Egypt.