The weather in Philadelphia was terrible the day of my tour, so I hopped on and stayed on, but I feel the tour was well worth the $26 i paid. Since there were so few people on the tour that day, and there were long stretches where I was the only person on board, I had almost a " private tour". My tour guide was very knowledgable and quite humorous and I learned a lot about Philadelphia without ever getting off of the bus. He also made sure I got a shuttle back to the Marriott - much appreciated as the weather was so bad. I must also mention the kind lady who assisted me in getting on the tour bus at the Marriott stop. She offered me shelter in the stationary bus, and gave me a lot of information and pointers about Philadelphia. Her enthusiasm about Philadelphia and the tour got the trip off to a great start. You are lucky to have such wonderful staff!
The tour covered a LOT of ground, and I think when I have the chance to return to Philadelphia I will book the 2 day tour as the bus stops at 3 museums and the penitentury, which would take a big chuck of time to tour.