We did not have a lot of time to spend in Boston, just a little more than a handful of hours, and we opted for a self guided tour along the north portion of the Freedom Trail. It was easy, and informative, and our children had a great time following the red line. It was also fun to walk through some of the Boston neighborhoods that I know we would have otherwise missed. A big must visit is the colonial printer (mentioned in several other reviews) located next to North Church. Our printer was a young woman, and she was fabulous. She was very well informed and very enthusiastic. They also provided a really great demonstration of chocolate... we're taking some home with us.