History's Greatest Mysteries Trivia Quiz

Where to Watch History's Greatest Mysteries

Ronald DeFeo’s Motive for Killing His Family Still Unclear

Loch Ness Monster

The Biggest Revelations in the Declassified JFK Assassination Files

The Zodiac Killer: A Timeline

What Happened to the 'Lost Colony' of Roanoke?

How Did Egyptians Build the Pyramids? Ancient Ramp Find Deepens Mystery

What Is the Bermuda Triangle?

Solving the Riddle of Stonehenge’s Construction

Who Was D.B. Cooper?

Sonic Weapons' Long, Noisy History

Nazca Lines

How Did King Tut Die?

6 Secrets of King Tut

9 Fascinating Finds From King Tut’s Tomb

The Hindenburg Disaster: 9 Surprising Facts

The Hindenburg Disaster: Why the Giant Dirigible Burst Into Flames