Keystone corridor from Harrisburg, PA -> Philadelphia, PA Featuring SEPTA's Busiest line; the Paoli/Thorndale line, and soon to come Cynwyd branch! Enjoy Amish Pennsylvania, passing lush farms and forests, to the busy cityscape of Philadelphia. 🐄🌲🏙️ Enjoying the rich and historic main line, between Philadelphia and Paoli, that has been transporting millions of passengers since the glory days of the PRR to the modern fast SEPTA trains. substituted names due to a lack of licensing