The Bell In Hand Tavern, Boston
We visited The Bell In Hand Tavern in Boston but it was too busy and we were in a hurry to finish the Freedom Trail tour so we didn't have time to go in for food or drinks. Maybe next time. They advertise that they are "America's Oldest Tavern" but this list shows them at #52 on the list of America's oldest bars.
http://bellinhand.com/