I went on two different tours with Boston By Foot on a recent business trip. Both tours were a little different than your "typical" introductory city tours, including one that focused on "the dark side" of Boston's history. Our guide was engaging, friendly, and told a number of stories that were new to even the locals in our group. It's definitely a fun way to get to know more about the city, and I enjoyed getting to check out different spots that I never would have known were there.