actually loved being in Boston! There is something about the atmosphere that makes it pleasing. We did some of the standard sight-seeing. It reminded me a lot of San Francisco. Just walking around Boston Commons is interesting and relaxing. The grass is green, the hills are sloping, all types of activities going on around you. I never saw it overcrowded, either. We watched a couple of outdoor concerts. We found them just by walking around, and then sitting around listening for awhile. What a lazy, luxurious way to spend an afternoon.
The Freedom Trail was also interesting. I would, of course, recommend it to any visitor. Be sure to leave plenty of time. There is a lot of reading to be done. Also, be prepared to take a nice little hike.