I have l lived and played in Philadelphia off and on over the years, so was amazed at the amount of interesting places, history and fun tidbits that I didn't know before. We did the so-called "Cheesesteak Tour" (don't be misled, there are no cheesesteak stops), but rather some interesting buildings and insight into what you can then do yourselves later on your on (for instance, the Park Service has taken over quite a bit and turned, for instance, the old First National Bank into a free museum), quite a bit of Ben Franklin history, the start of Philly with the Quakers, and lots of question answering. We were quite lucky that only two of us showed up, so we had Mark all to ourselves. I felt bad for him because he only makes money on the tips, but he never let on that he might have been disappointed at the poor showing (it was supposed to rain and with free reservations, people do not feel obligated to show up). Rather, he was enthusiastic, winning, knowledgeable and very, very personable. My friend and I are already talking about taking the Billy Penn tour next because of how wonderful this experience was. I did not see this on TripAdvisor before I went and had no idea of what to tip. We ended up giving $15 each which might have been more than we would have if there was a big group, but he did such a wonderful job for almost 2 hours, that $30 didn't seem even enough for his time and expertise.
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