Hey Ula guidesMassachusetts travel guidesHomeGuidesNorth AmericaUnited StatesMassachusettsBoston's Freedom Trail, a children's museum and MBTA rides that are free through age 11.BostonFamily travelBoston · With kidsBoston with kids: things to doBoston with kids: MBTA free for 11 and under, Freedom Trail, museum child prices and ages, the SL1 airport bus and 12 months of weather.