Two years ago, we picked the American landmarks every kid should see, from Ellis Island to Redwood National Park. Our new and improved 2011 lineup takes that challenge even further, by highlighting how our country's top sights cater to kids' abbreviated attention spans. From roasting marshmallows around a campfire to playing dress-up at Monticello, these cool, interactive activities ensure that the younger set will enjoy these must-see spots as much as their parents do.


Grand Canyon (Ariz.)

During the day, stroll the 4-year-old Skywalk, a U-shaped, glass-bottom observation deck that juts 70 feet over the canyon's West Rim and sits 4,000 feet above the Colorado River. Come sunset, hit Grand Canyon Apache Stables, where, for $25.50 per person, you can hitch a one-hour ride on a horse-drawn wagon that ends around a campfire. Tip: BYO marshmallows and hot dogs so you can cook up a nighttime snack. Skywalk Package including mandatory Legacy pass.