Pinterest Facebook Twitter Email Top 10 Attractions in Philly 03:14 Here's what to see when visiting Philadelphia -- the 'Cradle of Liberty.' Similar Topics: Travel Tips Travel's Best Related Videos Fun in Historic Philadelphia 02:19 Audubon's Mysterious Bird 02:42 The Original Siamese Twins 02:59 Secrets of Einstein's Brain 02:04 Liberty Bell Refuge 01:24 Amazing Robot From 1928 Draws 02:34 The Real Rocky 03:09 Million-Dollar Nickel 02:58 More Videos Century Inn Presidential Stay 02:07 Inside Capone's Haunted Cell 02:37 Theremin's Amazing Invention 01:13 Remembering Charles Dickens 02:13 See Shrunken Human Heads 04:00 Deadly Legionnaires' Disease 03:45 Don Explains: PA Daily Numbers 00:33 Vampire Killing Kit 02:54 The Poison Squad 02:00 Discovery of Vulcanization 03:06 Audubon's Masterpiece 04:28 A Nearly Tragic Tale 02:51 Too Heartbreaking to Bear 02:31 Harnessing the Force 03:15 Allegheny Arsenal Explosion 02:34 History of General Warren Inn 02:06 We Recommend Scariest Halloween Attractions 21 Photos Top 10 Vampire Destinations 10 Photos Top 10 Most Haunted Places Top 10 Haunted Places in Baltimore 10 Photos Top 10 Natural Wonders 10 Photos Top 10 Corn Mazes 10 Photos
