A doting father who encouraged his son to do whatever he wanted with his life, Vernon Presley was right by Elvis’ side all the way up until the King’s untimely death at just 42.

Also known as the trembling giant, the enormous clonal colony of quaking aspen trees named Pando stands as one of the largest living things on planet Earth.

It's the most famous sound in Hollywood history, but where did the Wilhelm scream come from and why does everyone use it?

Revered by collectors for its beautiful shell, the cone snail is not just a pretty prize — as one venomous sting from the animal could be enough to induce paralysis and even death.

Between 1970 and 1973, serial killer Dean Corll raped and murdered at least 28 boys and young men around Houston — with the help of two teenage accomplices.

Though born and wedded royal, the life of Tsarina Alexandra proved to be anything but charmed.

Alyssa Bustamante seemed to be a rebellious yet normal teenager in rural St. Martins, Missouri — until she murdered her neighbor Elizabeth Olten in cold blood in 2009.

From teaching Rosa Parks how to protest to organizing student activists, Ella Baker was one of America's most tireless civil rights leaders — all while operating largely behind the scenes.

In 1970s Brooklyn, idealistic cop Frank Serpico blew the whistle on bribery and crime within the force. It almost cost him his life.

Just before Abby Williams and Libby German were killed in the Delphi murders on February 13, 2017, German captured chilling footage of the man who was about to take their lives.

Tituba proved to be a fantastic orator as she talked her way out of slavery using the fear and mass hysteria of witchcraft that paralyzed the people of Salem.