Massachusetts: Plymouth
22/51Outside the biggest city of Boston, Plymouth arguably offers the most important collection of historical sights to explore, but the past is only part of the fun of visiting here. Sure, the 1749 Courthouse, Plymouth Rock and Plimoth Plantation are as enthralling as ever (especially in 2020, the 400th anniversary of the Pilgrim's arrival), but the nearby beaches, gardens and parks are also a delight.