Pinterest Facebook Twitter Email Allegheny Arsenal Explosion 02:34 What caused the tragic explosion at the PA arsenal during the Civil War? From: Mysteries at the Museum and Reagan's Limousine and Keely’s Motor Similar Topics: History Travel's Best Related Videos Century Inn Presidential Stay 02:07 Amazing Robot From 1928 Draws 02:34 The Real Rocky 03:09 Fun in Historic Philadelphia 02:19 Audubon's Mysterious Bird 02:42 Secrets of Einstein's Brain 02:04 The Original Siamese Twins 02:59 Liberty Bell Refuge 01:24 More Videos Million-Dollar Nickel 02:58 Don Explains: PA Daily Numbers 00:33 Vampire Killing Kit 02:54 A Deadly Bank Robbery 02:18 Kidnapping by Bicycle Pete 02:15 A Life-Saving Vaccine 02:47 Brilliant Lottery Scam 04:13 Cannibalism in the Arctic 03:54 Lottery Fraud 03:34 Deadly Legionnaires' Disease 03:45 Remembering Charles Dickens 02:13 See Shrunken Human Heads 04:00 Theremin's Amazing Invention 01:13 Inside Capone's Haunted Cell 02:37 Discovery of Vulcanization 03:06 Audubon's Masterpiece 04:28 We Recommend Reagan's Limousine and Keely’s Motor 9 Photos