Window Rock
A sacred site, Window Rock marks the capital of the Navajo Nation. It shares its name with the city in which it's located, just this side of the New Mexico border in northeastern Arizona. The feature forms a sort of natural, 200-foot-tall, sandstone amphitheater, with a distinguishing, 47-foot "negative space" right in the middle. The Navajo call it Tségháhoodzání, or "the rock with the hole in it."