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

Photograph showing the tunnel opening to South Apse and unidentified people at Cosanti in Paradise Valley, Arizona

Model of 3D Jersey Arcology design by Paolo Soleri shown at an exhibition

Model of 3D Jersey Arcology design by Paolo Soleri

Plastic model of Hexahedron Arcology design by Paolo Soleri

Plastic model of Hexahedron Arcology design by Paolo Soleri

Photograph of Earth House at Cosanti in Paradise Valley, Arizona showing bronze bell windchimes

Photograph of Earth House under construction at Cosanti in Paradise Valley, Arizona

Photograph showing desert landscape and vegetation at Cosanti in Paradise Valley, Arizona

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