Pinterest Facebook Twitter Email Presidential Bovine 01:34 A Presidential cow becomes the country's most famous missing pet. From: Don Wildman, Mysteries at the Museum and Cherry Sisters, President's Cow, Birth of a Riot Related Videos The Hidden Van Gogh 02:15 Alexander Graham Bell's Book 03:05 Stolen Stradivarius 02:54 Luxury Survival Condos 03:12 Cheese Duel 03:03 Congresswoman's Downfall 01:39 The Teenage Spy 03:23 Boone's Captured Daughter 02:03 More Videos Mail Train Robbery 02:17 Heavy Cannons 03:00 Capturing Wild Horses 02:23 Alcatraz Escape Attempt 02:18 The Illuminati Tunnels 02:50 Anthrax Culprit 03:12 Pop Rocks Invention 04:02 Tobacco Farm Fires 02:58 Beaver Bomb 01:47 Mountain Man Legend 03:15 Missing Mustangs 01:42 Zip to Zap 02:08 Mom Checks In 02:14 Looking for DB Cooper 02:22 Opera Riot 03:46 Dvorak vs QWERTY Keyboards 02:17 We Recommend 10 Cherry Trees You'll Spot in Washington, D.C. 10 Photos What to Do and See at Area 51 14 Photos 12 Best Destinations for UFO Fans 12 Photos New 'Shock Docs' Series of Two-Hour Specials Explores America's True Horror Stories Ghost Adventures: The Comedy Store 10 Photos Ghost Adventures: Haunted Hollow Forest 11 Photos