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8 ruins to take you on a walk through time

Mesa Verde, Colorado

Photo: MarclSchauer/Shutterstock

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Mesa Verde, Colorado

The Pueblo ruins in Mesa Verde National Park, Colorado, date back well over 1,000 years. Now preserved as part of the 200-square-mile park, the area contains some of the best examples of ancient dwellings in the United States. They are accessible only as part of a ranger-guided tour, which helps keep these villages surprisingly intact.

The park also has museums and trails, rounding out an educational experience for visitors who want to see history firsthand.