4. Mesa Verde Cliff Dwellings (Colorado)
Mesa Verde National Park in Colorado is renowned for its well-preserved cliff dwellings, constructed by the Ancestral Puebloans between 1150 and 1300 AD. These dwellings, built under overhanging cliffs, showcase sophisticated masonry and communal living. Notable sites include Cliff Palace, the largest cliff dwelling in North America, featuring 217 rooms and 23 kivas. Visitors can explore these ancient structures through ranger-led tours, offering insights into the architectural ingenuity and cultural practices of the Ancestral Puebloans. (home.nps.gov)
