Pinterest Facebook Twitter Email Heavy Cannons 03:00 A massive cannon salvaged from a warship answers a 500-year-old mystery. From: Don Wildman, Mysteries at the Museum and Mile-High Club, Attempted Assassinatio, Zip to Zap Related Videos Hidden Beneath Sin City 03:03 A Souped Up Cadillac 'RV' 03:22 Doomsday Decontamination 03:21 The City of Chess 03:00 Trash Talk 04:02 Denver's UFO 01:51 Saltpeter Problem 02:58 Alcatraz Escape Attempt 02:18 More Videos The Illuminati Tunnels 02:50 Pensmore Mansion 03:52 Cleaning Up Sin City 02:25 Golfer Behind Enemy Lines 03:47 Miami Snail Invaders 02:46 Anthrax Culprit 03:12 Mom Checks In 02:14 Looking for DB Cooper 02:22 Opera Riot 03:46 Pop Rocks Invention 04:02 Tobacco Farm Fires 02:58 State of Jefferson 02:19 Dvorak vs QWERTY Keyboards 02:17 Beaver Bomb 01:47 Mountain Man Legend 03:15 Boone's Captured Daughter 02:03 We Recommend 'Ghost Nation' Investigates Haunted Homes Across America 21 Photos 12 Unique Places to Spend Thanksgiving 23 Photos 9 Ways to Experience Native American Culture 9 Photos 10 Haunted European Hotels Where You're Likely to See a Ghost 11 Photos 16 Things to do on the San Antonio River Walk 16 Photos World's 9 Best Places to Go Skydiving 9 Photos
