Did homemade heads help destroy the reputation of Alcatraz prison? How did the Enigma machine help to win World War II? And is the Walters Art Museum in Baltimore the actual home of the Mona Lisa?

Does a prehistoric "monster" provide clues to an Ice Age puzzle? Is an odd wooden figure the explanation for a 60-year-old mystery or the key to a government cover-up?

What does a vintage fire engine tell us about what really destroyed San Francisco after the 1906 earthquake? Does a 10,000-year-old mastodon skeleton reveal a shocking story of greed and murder inside one of our nation's most esteemed universities?

Did the Japanese send weapons of mass destruction to the US mainland during World War II? Is a statue of illusionist Harry Houdini haunted? Does an old hatchet hold the key to one of the nation's most sensational unsolved murders?

Bonnie and Clyde's rifle and a bizarre deep-sea Fish are featured.

A T. rex skeleton, the Slinky and McKinley’s nightshirt are featured.

The Greensboro lunch counter, Radithor and a WWII U-boat are featured.

Objects related to Rosa Parks, Elliot Ness and Bigfoot are featured.

The Theremin, Silly Putty and the Tacoma Narrows Bridge are featured.

Dillinger's death mask, the Frisbee and a shipwreck are featured.

USS Intrepid, the Seattle glue pot and Wing-Walkers are featured.

The Concorde, Robert the Doll and the Unabomber's shed are featured.