My wife & I are no strangers to Boston. Both of us having worked there many years we decided to take this tour to discover the evolution of the city. The tours leave from the steaming Kettle on Government Center plaza. Only the 2 of us showed up for this particular tour I thought they might cancel but no we left on schedule. Another guide that does a different tour joined us. Our Guide Tom was very knowledgeable and pointed out landmarks. Landmarks we had passed many times without a clue that they were there or what they represented were explained and we came away with a much clearer understanding of the many ways Boston has changed since its founding. Our tag along guide added a some details from the tours she leads. We will be taking other Boston by Foot tours in the future.