Mysteries at the Museum S1:E11

Alcatraz, Enigma Machine, Fiji Mermaid, Apollo 13, Dymaxion House, Real Mona Lisa

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?

Smilodon, Boeing B-29 Superfortress "Bockscar", Cardiff Giant, Train Disaster, Roswell UFO Crash, George Washington's Dentures

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?

Patty Hearst, Mastodon, Humboldt Squid, Manhattan Project, San Francisco Earthquake, Ellis Island

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?

Harry Houdini Bust, Richard Byrd Expedition, Japanese Secret Weapon, "NOW" Protest Flag, Lizzie Borden, Adlai Stevenson's Briefcase

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 Rifle, Iwo Jima Flag, Aerotrain, Anglerfish, Frederick Cook Diary, Joseph Kittinger Harness

Bonnie and Clyde's Gun - The Iwo Jima Flag - The Aerotrain 1955 - The Deep Sea Anglar Fish - Who reach the North Pole First - 1960 100,000 feet parachute Trial.

Spruce Goose, T-Rex Skeleton, President McKinley Nightshirt, Art Heist, Johnstown Flood, Slinky

Artifacts include the "Spruce Goose" aircraft, a T-Rex skeleton, President William McKinley's torn nightshirt, empty picture frames from an art heist, a watch from the Johnstown flood, and the invention of the Slinky.

Watergate, Radithor, German U-Boat 505, Lindbergh Ransom Note, Pat Garrett Gun, Greensboro Lunch Counter

In the National Museum of Nuclear Science and History, there's a small vial that once contained a wildly popular drug called Radithor. Don Wildman discovers how this doctor-approved "cure-all" end up destroying countless lives.

Theodore Roosevelt, Eliot Ness, Spirit of America, The Titanic, Rosa Parks, Bigfoot

Artifacts relating to the attempted assassination of Teddy Roosevelt, the Cleveland, OH torso murder serial killer, the capture of the land speed record by the U.S. from the British, the sinking of the Titanic, the civil rights movement, and Bigfoot.

Theremin, Tacoma Narrows Bridge, Silly Putty, Accidental Mummies, Mt. St. Helens, USS Cyclops

The Theremin an electronic instrument in the Philly archives played into spy scandals, Silly Putty and the Tacoma Narrows Bridge are featured.

Empire State Building Plane Crash, Dillinger's Death Mask, Thomas Flyer, Edmund Fitzgerald, Frisbee, Fall of Saigon

A New York City museum displays an artifact from an airplane which brought dread and destruction to the city; a metal staircase from the U.S. Embassy in Vietnam is on display at the Gerald Ford Museum in Grand Rapids, Michigan.

Robert the Doll, Renault FT-17 Tank, Alan Shepard's Golf Club, Unabomber's Cabin, Jesse James' Holster, The Concorde

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