We will have a few days in Boston as part of college visits with our daughter and would love to get some recommendations for good dining---breakfast, lunch and dinner. What are the not-to-be missed dining experiences that really say "Boston"? We have already heard about Legal Seafood, but we are open to all kinds of suggestions. Also, we heard there is a great Italian pastry shop with cannolis that people line up for 100-deep. We will be there in mid-July, and are still trying to decide where we will stay. We will use Boston as our base, but will go to Medford one day to see Tufts, and Providence one day to see Brown.