From Riley the golden retriever to Apollo the German Shepherd, these canine companions remained calm and performed their duties in the face of chaos following the terrorist attacks of September 11, 2001.

Archaeologists from Secrets of the Ice noted that the arrow is an "exceptional" find, but also raised concerns about the impact of climate change on the glacier.

This New Kingdom fort likely helped ancient Egypt defend itself from invasion by both Libyan tribes and the "Sea Peoples" in the era surrounding the reign of Ramses II.

From groundbreaking scientists like Albert Einstein and Nikola Tesla to modern prodigies like Christopher Hirata and Marilyn vos Savant, these 11 geniuses are among the smartest people in world history.

Found at the site of one of the world's oldest known shipwrecks, this seven-inch-long dagger provides fascinating new insight into the Cretan-Minoan civilization.

From Squeaky Fromme and Bobby Beausoleil to Tex Watson and Leslie Van Houten, some members of the Manson Family cult walked free after the infamous Tate-LaBianca murders of 1969 — while others spent the rest of their lives behind bars.

In March 1980, John Favara struck and killed the 12-year-old son of infamous New York mobster John Gotti with his car. Four months after Frank Gotti's death, Favara mysteriously disappeared.

Qunkasaura pintiquiniestra lived 73 million years ago, grew to be 65 feet long, and weighed more than 15 tons.

Dating back 2,000 years, this encampment was presumably used by the Roman Legions during a battle at nearby Crap Ses Gorge in 15 B.C.E., amid Emperor Augustus' conquest of the Alps.

Explore the "dangerous paradise" of South Florida.

While the Los Angeles Mafia never rose to the same notoriety as its counterparts in New York and Chicago, the crime family infiltrated Hollywood, had a hand in the growth of Las Vegas, and terrorized the West Coast for decades.