How To See Boston in 2 Days by Old Town Trolley. Almost every city offers walking tours, ghost tours, pub/bar tours, history tours, and you don't have to be a tourist to join. Learn the history of where you live or where your ancestors come from.
And the fact that the Old State House is still there, tucked away between skyscrapers.
THE place to be during all seasons. It's supposed to have flowers blooming all year round (except winter) and in the winter there's a public skating rink. Cute place to walk around in!
“Beacon Hill”- the prettiest, most charming neighborhood in Boston
Boston's Isabella Stewart Gardner Museum
Things to Do in Boston in June 2015 - ArtBar Summer Patio Parties
Quincy Market, Boston, MA by Gary Burke.
Travel Tips - What To Do in Boston. Some good stuff listed, but by no means an all-inclusive list :)