On our drive home from the Phoenix airport, we took a couple of NPS (National Park Service) excursions. We visited Montezuma Castle, cliff dwelling ruins of the Sinaguan people, near Campe Verde. Look at the cliff in the second picture; the shadow hides the castle a bit. Then Sunset Crater, an old volcano top with mounds and fields of lava rock, and finally the Wupataki pueblo ruins. Interesting & beautiful places to visit.