From Kenny the tiger to Otto the kitten, you've probably seen content about animals with Down syndrome. But what's the truth about their conditions?

Abigail Folger was stabbed 28 times by Manson Family members Patricia Krenwinkel and Tex Watson as Charles Manson's followers killed everyone inside the Los Angeles home of actress Sharon Tate in August 1969.

The Nazis may have killed 14-year-old Czeslawa Kwoka at Auschwitz, but her powerful portrait taken at Auschwitz lives on today.

By the time she turned 18, Sarah Rector's net worth was estimated at over $1 million — about $28 million today. And it all came from undesirable land that the federal government gave her.

Michel and Edmond Navratil had been kidnapped by their father and booked under fake names on the Titanic. When he died in the sinking, no one knew who they were.

Though reportedly brilliant like his father, Eduard Einstein struggled with his mental health from a young age and spent most of his life in a Swiss psychiatric clinic.

In 1983, Virginia Vallejo featured Pablo Escobar on her television show and painted him as a man of the people. And for the next five years, she briefly enjoyed the spoils of life in the cartel.

On May 15, 2006, David Sharp died on the Northeast Ridge of Mount Everest after becoming immobile due to frostbite and a lack of oxygen. The 40 climbers who passed him as he struggled later faced harsh criticism for not trying harder to save him.

During the 1960s and '70s, many adventurous young tourists were eager to experience the famous Hippie Trail, which stretched from Europe all the way to Southeast Asia.

La Pascualita was installed in the window of a wedding gown shop in Chihuahua, Mexico, in the 1930s, and her lifelike appearance has convinced some that she's actually the embalmed daughter of the store's former owner.