This was my first Boston by Foot tour, and I'm super interested in the MBTA and the Big Dig - this tour was awesome. Our tour guide was an architect herself and was so knowledgeable about the history of Boston involving the evolving shoreline of colonial Boston, to the historical feat of the Big Dig, to the fun facts about the subway system. She was super enthusiastic too! This tour is definitely something you don't find with your average tour company. We were in small groups too, so it made it easy to ask questions. I've lived in Massachusetts and Boston myself for my whole life and still learned some many new facts about Boston!! Double Thumbs Up!!!