More than two per cent of the work force bikes to and from the job. That's a better percentage than any other big city.
Even Mayor Nutter participates in Bike To work Day each spring, and his interest, coupled with a highly-organized cycling community, has resulted in Philadelphia having one of the nation's best networks of cycle lanes.
Author and cyclist Julie Lorch spotlights all this and more in "where To Bike Philadelphia", the local volume in a growing nationwide series.
Right now, books on Chicago and Washington, DC also exist and many more are in the works.
Lorch, who bikes to work herself, likes riding around Philadelphia because the city is relatively flat. But for those days when you want a challenge, Manayunk is just a short pedal out Kelly Drive or Ridge Avenue.
She also cites the wide range of cycling clubs, one right for any enthusiast's experience, ability and interests.
The book is rich in colorful maps and lays out trips throughout the city and suburbs.
You can plan an outing by yourself or bring friends along.
For information about Julie Lorch and her book, just visit her website, Where to Bike Philadelphia.