According to the Guinness Book of World Records, Marilyn vos Savant has the world's highest IQ ever recorded — but many have tried to challenge that title.

Evelyn McHale wrote in her suicide note that she didn't want her family to see "any part" of her body. Instead, a photo of her death would become one of the most famous photographs of all time.

Despite being sentenced to life in prison in 1986 for racketeering, Carmine Persico maintained his grip on the Colombo's for decades.

When Alfred Watkins first put forth the idea that straight lines connect landmarks across Britain in 1921, he didn't believe that these pathways had any mystical significance — then subsequent theorists transformed ley lines into something paranormal.

Luciano family boss Frank Costello survived gang wars, police scrutiny, and an assassination attempt while becoming one of history's wealthiest mobsters.

In 1942, the U.S. Marine Corps recruited 29 Navajo speakers to create an unbreakable code to use in the Pacific Theater — and by the end of the war, more than 450 Navajo Code Talkers had helped the Allies to victory.

On February 14, 1929, seven members of Chicago's North Side Gang were killed in the St. Valentine's Day Massacre — and the prime suspect was Al Capone.

The sword was pulled from the attic decades ago, but a recent ceremonial cleaning revealed it was a priceless heirloom from the 12th century.

Reported to have lived 122 years and 164 days, Jeanne Calment was allegedly the longest-living human of all time — despite heavy consumption of chocolate, cigarettes, and red wine.

Hugh Glass dragged himself over 200 miles to the nearest fort after being mauled by a grizzly bear and left for dead by his fellow fur trappers. Then, he began his quest for revenge.

Dating back to ancient Greek writings, people have been avoiding the temple for fear of death.