Photograph showing roof structure of South Apse at Cosanti in Paradise Valley, Arizona

Photograph of South Apse and courtyard at Cosanti in Paradise Valley, Arizona

Photograph showing roof structure and shell wall of South Apse at Cosanti in Paradise Valley, Arizona

Photograph of Barrel Vault and retaining wall at Cosanti in Paradise Valley, Arizona

Photograph showing Barrel Vault, retaining wall and unidentified people at Cosanti in Paradise Valley, Arizona

Exterior view showing shell wall of South Apse at Cosanti in Paradise Valley, Arizona

Photograph showing view of South Apse from interior of Cat-Cast House at Cosanti in Paradise Valley, Arizona

Interior photograph showing lower-level living area of Cat-Cast House at Cosanti in Paradise Valley, Arizona

Photograph showing person walking in Cube City, an area of living quarters at Construction Camp, Arcosanti

Photograph of Cube City, an area of living quarters at Construction Camp, Arcosanti