Try the duckboat tours. They take you all around the city and into the Charles river. Go to the observatory at the top of the Prudential Tower. Head over to Cambridge and check out Harvard’s campus. If you’re going to Fenway, grab a bite at Boston Beerworks. Walk down Newbury street with all the boutique shops. Walk into the very first Ritz-Carlton at the end of Newbury, which is now the Taj Hotel. Check out the public gardens and boston common. Skope out the old mansions on the coblestone streets in Beacon hill. Oh and you must have a bite to eat at Parrish Cafe at Boylston and Arlington – Best sandwich in town.

I could go on. Hope this helps. Enjoy your trip