The Watchtower at Desert View, on the South Rim of the Grand Canyon, by Mary Colter.
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The Watchtower overlooks spectacular views of the Grand Canyon and Colorado River.
Kevin Matthews/ ArtificeImages

The ceiling in the the round gift shop room of the Watchtower is built up with traditional pole corbeling.
Kevin Matthews/ ArtificeImages

A curving staircase leads upward from the gift shop areas in the Watchtower.
Kevin Matthews/ ArtificeImages

Circular balconies wrap the tower interior, which is extensively decorated with to Southwestern Pueblo themes.
Kevin Matthews/ ArtificeImages

Stairs climbing the tower follow the inside of the great stone cylinder walls.
Kevin Matthews/ ArtificeImages

Irregular windows along the stairs and balconies frame a wealth of vignettes onto the amazing desert and canyons outside.
Kevin Matthews/ ArtificeImages

A carefully constructed "ruin" beside the tower base completes a sense of history.
Kevin Matthews/ ArtificeImages