Taken during a summer monsoon storm in bracketed shots (of 3) then converted in HDR.
In total there are more than 800 identified ruins spread around many miles of desert within Wupatki National Monument, but five of the largest (Wupatki, Wukoki, Lomaki, Citadel and Nalakihu) are close to the main road (see map), and these are the only sites open to visitors. All the dwellings were built by the Anasazi and Sinagua Indians (predecessors to the Hopi and Navajo).
Also, this monument is where George proposed to me the same day I shot this. :)