Carlsbad Caverns National Park is a unit of the United States National Park Service and a UNESCO World Heritage Site that is located near Carlsbad, New Mexico. It is most famous for the "Big Cave" and its Big Room, at one time considered the largest natural underground chamber in the world. Although no longer occupying that niche, it is still one...

Bandelier National Monument is a United States National Monument in the state of New Mexico near Los Alamos. It was once inhabited by the ancient Puebloans (incorrectly known as the Anasazi), the ancestors of some of the modern-day Native American pueblos of northern New Mexico. For some unknown reason probably related to drought and decline in...