Pinterest Facebook Twitter Email Audubon's Mysterious Bird 02:42 One bird in John James Audubon's catalogue perplexes researchers. From: Mysteries at the Museum and Reagan's Limousine and Keely’s Motor Similar Topics: History Travel's Best Related Videos The Original Siamese Twins 02:59 Fun in Historic Philadelphia 02:19 Secrets of Einstein's Brain 02:04 The Real Rocky 03:09 Amazing Robot From 1928 Draws 02:34 Liberty Bell Refuge 01:24 Audubon's Masterpiece 04:28 Million-Dollar Nickel 02:58 More Videos Inside Capone's Haunted Cell 02:37 Deadly Legionnaires' Disease 03:45 Remembering Charles Dickens 02:13 Theremin's Amazing Invention 01:13 See Shrunken Human Heads 04:00 Discovery of Vulcanization 03:06 A Nearly Tragic Tale 02:51 The Poison Squad 02:00 Too Heartbreaking to Bear 02:31 Harnessing the Force 03:15 Century Inn Presidential Stay 02:07 Don Explains: PA Daily Numbers 00:33 Vampire Killing Kit 02:54 Allegheny Arsenal Explosion 02:34 America's First Bank Robbery 02:33 Kidnapping by Bicycle Pete 02:15 We Recommend Eastern State Haunted History Historic US Ghosts Reagan's Limousine and Keely’s Motor 9 Photos Philadelphia Weekend Guide National Park Sites Near Philadelphia 11 Photos Historic Philadelphia Tours
