Hi there,
Some of the things you can do in Boston are:
* Exploring Boston's history along the Freedom Trail which includes sixteen attractions on the Trail such as the Paul Revere House and Faneuil Hall Marketplace.
* Visit the Faneuil Hall Marketplace where you can find vendor stalls and places to eat and there are often street performers for some free entertainment as well.
*
Visit the Boston Museum of Science which has an IMAX theater, but offers a wider array of other shows including laser and sound shows, a Planetarium, 3-D movies, and live presentations which are often free with museum admission.
Hope this helps
Vacationbuddy