Hop-on Hop-off's dedicated route provides locals and visitors with access to over 100 sites and attractions throughout Philadelphia. Traveling over 16 miles of the city, the tour bus provides the perfect combination of expert commentary and transportation so riders can gain a truly local experience. You hear all about Philadelphia's' rich history and culture while traveling aboard an open-top double-decker bus, and you'll have easy access to landmarks with 28 different stops along the way.