Last June, I took my then 16-year old son to New York City. The primary focus of the trip was baseball. We went to a Mets game, a Yankees game and a Staten Island Yankess game. Of course, we did other touristy things.
This year, I'm taking my 15-year old daughter to NYC and Boston during her spring break (late April). We're doing it during spring break instead of over summer vacation because of her marching band commitments (she plays flute and piccolo) and because she's taking an online class over the summer. The other reason for the timing is so that she can do college campus visits while the schools are still in session. We're going to visit Julliard in NYC and Berklee and Emerson College in Boston. She's most excited about Berklee.
So...what else should we do? We already have tickets to see a couple of Broadway shows in NYC and a Red Sox game in Boston (she couldn't care less, but I'm not going to Boston during baseball season and not see a Sox game), but we don't have too much else on the "must do" list. I do already have a bunch of "maybe" ideas, but I'm interested in what others think, including restaurant suggestions. For reference, in NYC, we're staying Brooklyn (near the Nevins St. subway station), and in Boston, we're staying near UMass, and I'm very comfortable using public transportation in both cities.