Mesa Verde

The Mesa Verde National Park in Colorado is home to the preserved homes of the Ancestral Pueblo people. Many of these homes, which are carved right from caves and rock faces, date back to the early 13th century. Today, it is possible to walk beneath the overhanging cliffs and tour these ancient abodes. The Balcony House is especially well preserved, and it boasts 40 rooms that are accessible exclusively by ladder. The nearby Cliff Palace is even bigger, and it is believed to have housed more than 100 people in its 150 original rooms.