My mother and I spent two days in Boston before our New England motor coach tour. We enjoyed following the red line (sometimes bricks, sometimes paint) along the sidewalk as we learned more about the history of our country.
We didn't walk too far (Mom is almost 90!) but the Freedom Trail was a memorable part of our visit to Boston.
A plus....the trail ran right along side our hote (Omni Parker House) so it was easy to find our way back home!