From the Zodiac killer to Jack the Ripper, many disturbed criminals have never been caught. These crimes became well-known in history because the crimes remain unsolved and the case technically remains open. Read about 9 of history's coldest cases.
Such famous artworks as 'Mona Lisa' and 'The Scream' have been stolen and returned; some have never been found. Art burglars either keep the artwork for themselves, or try to ransom it back to the original owner. Learn about 7 notorious art thefts.
It seems impossible to lose something so valuable, but it has been done -- more than once. See our list of the world's greatest missing treasures, including The Amber Room and Pharaohs' Missing Treasure.
Today, some police forces are using virtual reality technology to capture and recreate crime scenes digitally. They've discovered that, if used properly, virtual environments help the investigation process from its earliest stages all the way to a verdict.
The United States is renowned for having one of the most sophisticated judicial systems in the world. Every day thousands of people take part in this system, hoping to settle disputes and work for justice. Learn how the U.S. judicial system works.
The TV show "Prison Break" is the story of a structural engineer named Michael Scofield who gets himself locked up so that he can help his brother escape death row. Learn about some amazing real-life escapes.