Montezuma Castle National Monument protects a set of well-preserved dwellings located in Camp Verde, Arizona which were built and used by the Sinagua people, a pre-Columbian culture closely related to the Hohokam and other indigenous peoples of the southwestern United States, between approximately 1100 and 1425 AD. The main structure comprises five stories and twenty rooms, and was built over the course of three centuries.

Neither part of the monument's name is correct. When European-Americans first observed the ruins in the 1860s, by then long-abandoned, they named them for the famous Aztec emperor Montezuma in the mistaken belief that he had been connected to their construction (see also Montezuma mythology). In fact, the dwelling was abandoned more than 40 years before Montezuma was born, and was not a "castle" in the traditional sense, but instead functioned more like a "prehistoric high rise apartment complex", as many families lived there. (Wikipedia)

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https://sites.google.com/view/nationalmonumentsindanger/nps/tuzigoot-national-monument

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https://sites.google.com/view/nationalmonumentsindanger/nps/wupatki-national-monument

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https://sites.google.com/view/nationalmonumentsindanger/nps/walnut-canyon-national-monument