Grand Canyon (Ariz.)
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.
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.
The National Mall (D.C.)
Riding the streets of Washington, D.C., in a boat on wheels might sound cheesy, but cruising the Potomac River in one is pretty sweet. Set in a WWII-era amphibious vehicle, the 90-minute D.C. duck tour covers both land and sea. The first leg hits the history-packed National Mall—look for the 19-foot-tall Lincoln Memorial, the Capitol building, and the Smithsonian museums—and then switches to a scenic river trip. Highlight: The boat pauses at Gravelly Point, a park located just a few hundred feet from the runway at D.C.'s Reagan National Airport, so you can watch roaring planes take off and land.