Discover Philadelphia’s Hidden History. Explore and experience hidden American History in Philadelphia’s old town as you discover how Liberty guides Justice towards Freedom with the Faith & Liberty Discovery Center Trail app. From Benjamin Franklin’s fugitive days to the city’s handling of the Yellow Fever Epidemic, this app will guide you through top Philly sights like the Liberty Bell Center, Independence Hall and the National Museum of African American History, as well as hidden or lesser-known gems where history was made. Put on your most comfortable walking shoes and learn about the influence Quakers had on the early days of printing, how William Penn’s vision created a blueprint of America, visit family-friendly fun sites, or participate in our exclusive National Treasure hunt trail! If it’s your first time in Philadelphia–or you’re a born and raised local–the Faith & Liberty Discovery Center Trail app will have something new and exciting for you.