The Greek historian Herodotus wrote that it took 100,000 men 20 years to construct the Great Pyramid of Giza — but how exactly did they do it?

Peter Sutcliffe claimed to be on a mission from God as he killed 13 women and evaded hapless police on nine separate occasions while committing the Yorkshire Ripper murders.

According to the Project Blue Beam theory posited by Serge Monast, NASA and the United Nations are trying to establish a totalitarian, one-world government — but is there any proof?

Elsa Einstein was Albert Einstein's second wife as well as his first cousin — and she remained married to him despite his frequent affairs.

Russian physicist Anatoli Bugorski is the only person known to have been directly exposed to a nuclear particle accelerator beam — and survive.

Described as the "perfect psychopath," Pedro Rodrigues Filho murdered at least 70 people — 47 of whom were fellow inmates in prison.

Starting in 1791, Alexander Hamilton had a year-long affair with Maria Reynolds. Five years later, he published "The Reynolds Pamphlet," detailing how she and her husband had extorted him.

When Adam Rainer turned 18 he was under four and a half feet tall. A little more than 15 years later he would be 7'1" — tall enough to be classified as a giant.

Colleen Stan became known as the "girl in the box" after she was held prisoner by Cameron and Janice Hooker inside their California home between 1977 and 1984.

In July 1951, Mary Reeser mysteriously burned into a pile of ashes in her Florida home, but the apartment around her suffered almost no damage, leading to theories that she had spontaneously combusted.

Christopher Scarver didn't like fellow inmate Jeffrey Dahmer's sickening crimes — so on November 28, 1994, he did something about it.