Pinterest Facebook Twitter Email Fun in Historic Philadelphia 02:19 Philadelphia is most famous for its significant historic sites and icons. Similar Topics: History Travel's Best Related Videos The Real Rocky 03:09 Liberty Bell Refuge 01:24 Audubon's Mysterious Bird 02:42 Secrets of Einstein's Brain 02:04 Amazing Robot From 1928 Draws 02:34 The Original Siamese Twins 02:59 Million-Dollar Nickel 02:58 See Shrunken Human Heads 04:00 More Videos Inside Capone's Haunted Cell 02:37 Remembering Charles Dickens 02:13 Deadly Legionnaires' Disease 03:45 Theremin's Amazing Invention 01:13 Harnessing the Force 03:15 Audubon's Masterpiece 04:28 The Poison Squad 02:00 Discovery of Vulcanization 03:06 A Nearly Tragic Tale 02:51 Too Heartbreaking to Bear 02:31 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 Best Fireworks Displays 20 Photos South Dakota's Must-See Attractions 16 Photos 50 of the Most Charming Small Towns in America 50 Photos 17 BIG Texas Attractions 17 Photos Haunted Hotels 10 Photos 50 States, 50 Landmarks 50 Photos
