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 Liberty Bell Refuge 01:24 The Original Siamese Twins 02:59 Secrets of Einstein's Brain 02:04 The Real Rocky 03:09 Amazing Robot From 1928 Draws 02:34 Million-Dollar Nickel 02:58 More Videos Century Inn Presidential Stay 02:07 Inside Capone's Haunted Cell 02:37 Remembering Charles Dickens 02:13 Theremin's Amazing Invention 01:13 See Shrunken Human Heads 04:00 Deadly Legionnaires' Disease 03:45 Vampire Killing Kit 02:54 Don Explains: PA Daily Numbers 00:33 Allegheny Arsenal Explosion 02:34 Discovery of Vulcanization 03:06 Audubon's Masterpiece 04:28 A Nearly Tragic Tale 02:51 The Poison Squad 02:00 Harnessing the Force 03:15 Too Heartbreaking to Bear 02:31 History of General Warren Inn 02:06 We Recommend Top 10 Vampire Destinations 10 Photos Top 10 Family Spring Break Hotels 10 Photos Top 10 Natural Wonders 10 Photos Top 10 Haunted Places in Baltimore 10 Photos Top 10 Most Haunted Places Top 5 Spas in Palm Springs
