See all Monuments in Los Alamos Los Alamos for: Adventure, Food And Dining, Art And Culture, Nightlife, Spa, History, First Timers, Family, Romance, Shopping Bandelier National Monument About Bandelier National Monument is a 33,677-acre (13,629 ha) United States National Monument in New Mexico preserving the homes and territory of the Ancestral Pueblo People. Most of the pueblo structures date to two eras, in total from 1150 to 1600 CE. Add to Wish List