Undoubtedly one of the world’s top tourism destinations — and officially one of the New Seven Wonders of the World — the Great Wall stretches for thousands of kilometres across northern China. From Beijing, the easiest section to reach is Badaling, about 70 km from the city. It’s well restored and has a cable car, but it also draws the biggest crowds. Mutianyu is another popular choice with fewer tour groups if you go early. For a wilder feel, head to Simatai or Jinshanling, where much of the wall is original and the hikes are longer. Huanghuacheng is partly submerged by a reservoir, so you get the unusual sight of watchtowers half surrounded by water.

When Sam Walton opened his 5&10 on the Bentonville town square in 1950, he had no idea he'd planted the seeds for what would become the global leader in retail, saving millions of people money so they could live better. Today, that humble little dime store is the location of the Walmart Museum and offers a family-friendly experience featuring a world-class exhibit gallery, Walton's 5&10, and the Spark Café Soda Fountain.

Hawaii's black sand beaches are a world-class attraction. Punaluu Black Sand Beach, located on the southeastern Kau coast, draws its striking color from volcanic activity. Hawaiian Green Sea turtles often bask on the shore here — be sure to observe from a distance, as they are an endangered species.