In the 19th century, an archaeological excavation in Switzerland uncovered a Bronze Age arrowhead composed of an unexpected material.
Dorothy Arnold was an American socialite and heiress who disappeared under mysterious circumstances in New York City in December 1910.
Meet Denny, the first known human hybrid, a 13-year-old girl born to a Neanderthal mother and a Denisovan father.
The kidnapping of Marlene Santana is one of the most baffling cases of infant abduction in American history.
The figurine dates to the Neolithic period, when ancient people first started to develop farming communities in Italy.
In pre-colonial South America, sambaqui builders ruled the coast for thousands of years. Their fate remained mysterious – until an ancient skull unlocked the new DNA evidence.
For more than 20 years, the first ivory work of art recovered from the World Heritage cave Hohle Fels was believed to be a horse – until archaeologists made a new find.
The technique called portable X-ray fluorescence has helped Egyptologists identify changes and adjustments to details of tomb decoration that are invisible to the human eye.
Percy Fawcett was an inspiration for both Indiana Jones and Sir Arthur Conan Doyle’s “The Lost World,” but his 1925 disappearance in the Amazon remains a mystery to this day.
As Frederick Valentich flew over the Bass Strait in Australia, he made a radio call to the control tower, reporting an unidentified flying object.