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 Fun in Historic Philadelphia 02:19 Liberty Bell Refuge 01:24 Secrets of Einstein's Brain 02:04 Amazing Robot From 1928 Draws 02:34 The Real Rocky 03:09 The Original Siamese Twins 02:59 Audubon's Masterpiece 04:28 Million-Dollar Nickel 02:58 More Videos See Shrunken Human Heads 04:00 Inside Capone's Haunted Cell 02:37 Remembering Charles Dickens 02:13 Theremin's Amazing Invention 01:13 Deadly Legionnaires' Disease 03:45 The Poison Squad 02:00 A Nearly Tragic Tale 02:51 Discovery of Vulcanization 03:06 Harnessing the Force 03:15 Too Heartbreaking to Bear 02:31 Century Inn Presidential Stay 02:07 Vampire Killing Kit 02:54 Don Explains: PA Daily Numbers 00:33 Allegheny Arsenal Explosion 02:34 America's First Bank Robbery 02:33 A Deadly Bank Robbery 02:18 We Recommend America's World Heritage Sites 21 Photos 50 of the Most Charming Small Towns in America 50 Photos 50 States, 50 Landmarks 50 Photos Historic San Francisco Bobby Mackey's Haunted History Wonders of the West 10 Photos
