I visited Boston just for 2 days, to see friends of mine. It was short time but I can tell everyone that its completely different city, at least from New York. Its so calm, sophisticated, small amount of cars and tourists. Everything is good organized and clean. People are smart, polite, cheerful.
We also managed to visit Boston Aquarium, what was interesting and informative:
My friends showed us well-known beer pub “Cheers” that is popular because of film that was made here a long time ago. So its good to explore city with native residents who can show u it from inside, from their point of view.