Spend some time exploring Adams National Historical Park. The park is where several historic homes are located, including the birthplaces of John Adams and John Quincy Adams, and the United First Parish Church where both Presidents are entombed. Aside from the houses, there are plenty of attractions to see at this park so sign up for a tour or go on an excursion of your own.
While in Boston, be sure to visit the Bunker Hill Monument, one of America's oldest standing monuments. This impressive landmark was constructed in the mid 1800s to commemorate the first battle of the American Revolution. The monument is accompanied by an exhibit hall and a museum located across the street.