Plan of Babel Canyon Arcology city structure design by Paolo Soleri, from 1970 exhibit at Corcoran Gallery of Art, Washington, DC

Photograph of swimming pool and concrete canopy, with view of Student Apse in background, at Cosanti in Paradise Valley, Arizona

Photograph showing an unidentified person sitting on a bench underneath pool canopy at Cosanti in Paradise Valley, Arizona

Photograph of pool canopy at Cosanti in Paradise Valley, Arizona

Photograph of poles supporting concrete canopy above swimming pool at Cosanti in Paradise Valley, Arizona

Photograph showing unidentified person and the poles supporting the concrete canopy above the swimming pool at Cosanti in Paradise Valley, Arizona

Photograph showing unidentified person and the poles supporting the concrete canopy above the swimming pool at Cosanti in Paradise Valley, Arizona

Photograph showing unidentified person and the poles supporting the concrete canopy above the swimming pool at Cosanti in Paradise Valley, Arizona

Photograph of swimming pool and concrete canopy at Cosanti in Paradise Valley, Arizona

Photograph of swimming pool and concrete canopy at Cosanti in Paradise Valley, Arizona