Set in 11 blocks along the East River, this museum is an amalgam of galleries, historic ships, 19th-century buildings and a visitors’ center. Wander around the rebuilt streets and pop in to see an exhibition on marine life and history before climbing aboard the four-masted 1911 tall ship Peking. The seaport is generally thick with tourists, but it’s still a lively place to spend an afternoon, especially for families with children, who will enjoy the atmosphere and intriguing seafaring memorabilia.