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 Secrets of Einstein's Brain 02:04 Liberty Bell Refuge 01:24 The Real Rocky 03:09 Amazing Robot From 1928 Draws 02:34 The Original Siamese Twins 02:59 Million-Dollar Nickel 02:58 More Videos Century Inn Presidential Stay 02:07 Remembering Charles Dickens 02:13 Theremin's Amazing Invention 01:13 Deadly Legionnaires' Disease 03:45 Inside Capone's Haunted Cell 02:37 See Shrunken Human Heads 04:00 Vampire Killing Kit 02:54 Don Explains: PA Daily Numbers 00:33 Discovery of Vulcanization 03:06 A Nearly Tragic Tale 02:51 The Poison Squad 02:00 Audubon's Masterpiece 04:28 Harnessing the Force 03:15 Too Heartbreaking to Bear 02:31 Allegheny Arsenal Explosion 02:34 Layover in Philly 04:45 We Recommend Top 10 Haunted Places in Baltimore 10 Photos Top 10 Vampire Destinations 10 Photos Top 10 Most Haunted Places Scariest Halloween Attractions 21 Photos Top 10 Honeymoon Destinations Top 10 Natural Wonders 10 Photos
