Nothing beats New England seafood: Go al fresco with a lobster roll at The Barking Crab for waterfront views, or join the line early for a spot at Neptune Oyster for the chicest oysters on the half shell in the city.   Depending on when you visit, check out the Pats, the Red Sox, the Bruins, or the Celtics on home court, field, or ice.  While a Back Bay townhouse might be the pinnacle of Boston luxury, a stay at The Newbury Boston is a close second—especially in a Corner Park View Suite.  No, you can’t actually “pahk the cah in Hah-vahd Yahd” (despite what everyone’s favorite way to mock a Boston accent might claim), but you should cross the Charles River and stroll Harvard Square and get inspired by the pinnacle of American higher education at both Harvard and MIT.  A Freedom Trail walk is a must-do for a 2.5-mile stroll through revolutionary America.  Boston has a lot of nicknames that show this city has bragging rights—and it isn't exactly shy about reminding folks of it: The…