The conch shells, which were collected and modified by prehistoric humans around 4000 B.C.E., are capable of producing sounds akin to a French horn.

Found at the castle of Zorita de los Canes in the Guadalajara province, this knight from the Order of Calatrava is believed to have died defending this hilltop fortress sometime between the 13th and 15th centuries.

These vintage images of American cities in the early 1900s capture everything from the ruins of San Francisco just after the 1906 earthquake to the barely-developed patch of desert that would soon become Las Vegas.

From the New York City plane crash that happened shortly after 9/11 to the Charkhi Dadri mid-air collision in India, these aviation accidents shocked and horrified the world.

"Gum" like this can offer fascinating insights about the person who chewed it — even the color of their hair and eyes.

Discovered just eight inches beneath a working farm in the village of Bjugn, this unprecedented Viking burial has left archaeologists baffled — all the more so because she was surrounded by bird bones.

Though many questions remain about the figurine, researchers suspect that the artifact had ritualistic or spiritual meaning.

John F. Kennedy was assassinated on November 22, 1963, but more than six decades later, many questions still linger about the president's death and the tumultuous aftermath.

The small, gilded statue of Jesus likely dates back to the late 1100s or early 1200s, and it may point to the location of a lost medieval church in the area.

Though researchers haven't yet been able to get a good look inside and don't know who's buried there, it's believed that the crypt belonged to a wealthy family and that four bodies were placed on the shelves that line its walls sometime in the mid-1700s.