Ilya Repin's 1885 painting "Ivan the Terrible and His Son Ivan" shows Ivan IV, the first Russian czar, cradling his dying son after bludgeoning him, but historians are divided as to whether this murder ever really happened.

Dating to the 5th century B.C.E., Gela II measures approximately 50 feet long and 16 feet wide, which enabled it to carry large amounts of cargo, including the mythic metal orichalcum that's been linked to Atlantis.

Six-year-old Morgan Nick vanished from a Little League ballpark in Alma, Arkansas on June 9, 1995. Now, more than 29 years later, police have found DNA evidence linking Billy Jack Lincks to the disappearance.

Just minutes into their planned three-day search, two maritime historians discovered the wreckage of the tugboat John Evenson 42 feet beneath the surface of Lake Michigan, where it sank in 1895.

In 125 B.C.E., the ancient city of Fregellae in modern-day Italy was destroyed when it rebelled against Rome. Now, archaeologists have uncovered evidence of this violent revolt, including fire-damaged structures, a military camp, and signs of economic devastation.

While the ancient dairy product was described as "really dry, dense, and hard dust," it was once soft kefir cheese made from the milk of both cows and goats.

Researchers theorize that woolly mammoths may have gone extinct due to pollen allergies triggered by climate change, which impaired their ability to find mates, detect predators, and locate food.

On May 1, 1990, Greggory Smart was brutally murdered in his own home — and months later, it was revealed that Greggory’s wife Pamela Smart had sexually manipulated one of her 15-year-old students into killing him.

For the past 14 years, scientists have been growing a tree named "Sheba" from a 1,000-year-old seed that was found in a cave near Jerusalem, and now researchers believe it may be a lost species that was mentioned in the Bible.

Born and raised in Australia, Steve Irwin was a zookeeper and conservationist who became one of the world's most iconic wildlife enthusiasts.

The newly-discovered drawings include a decapitated head, a llama, and even a knife-wielding orca.

On September 13, 1990, 14-year-old Gina Grant bludgeoned her abusive mother to death with a crystal candlestick holder. Five years later, Harvard revoked Grant's admission after an anonymous source notified the school of her criminal history.