In April 2014, two Dutch tourists named Kris Kremers and Lisanne Froon went hiking in Panama and never returned. Months later, officials found their bleached bones and disturbing pictures.

A serial killer who murdered four girls in late 1980s Japan, Tsutomu Miyazaki was known as the "Otaku Killer" for his obsession with anime and pornography.

From Elisa Lam to Richard Ramirez, the Cecil Hotel's history has been filled with bizarre horrors since it was built in 1924.

On January 15, 1947, 22-year-old aspiring actress Elizabeth Short was found brutally murdered in Los Angeles — with her body cut in half and a ghastly smile carved into her face.

A successful painter who lived in Paris, Einar Wegener would undergo groundbreaking gender-affirming surgeries and live as Lili Elbe before dying in 1931.

Karla Homolka helped her husband Paul Bernardo rape and murder at least three victims between 1990 and 1992 — but she walks free today after serving just 12 years.

While Robert Kahn, Vint Cerf, and Tim Berners-Lee are rightly hailed as the inventors of the internet, the full story is much more complicated.

After serving prison time for smuggling marijuana, "Boston George" Jung graduated to cocaine and helped make Pablo Escobar the wealthiest drug lord in the world.

While her sister Anne was married to King Henry VIII of England, Mary Boleyn not only had an affair with him, she may have also bore him two children.

Because it's too dangerous to retrieve the dead bodies that litter the slopes of Mount Everest, most climbers remain right where they fell while trying to summit Earth's tallest peak.

The youngest American to serve in World War 2, Calvin Graham lied his way into the Navy at 12 years old in 1942, eventually earning the Bronze Star and the Purple Heart.