Photograph showing exterior view of Barrel Vault and Pumpkin Apse at Cosanti in Paradise Valley, Arizona

Photograph showing exterior view of Barrel Vault and Pumpkin Apse at Cosanti in Paradise Valley, Arizona

Photograph showing exterior view of and steps leading to Barrel Vault at Cosanti in Paradise Valley, Arizona

Model of Maryland Two Suns Arcology design by Paolo Soleri

Bell Tree at Cosanti

Photograph of vaults under construction at Arcosanti

Panorama view of Arcosanti site showing buildings under construction

Photograph showing buildings under construction at Arcosanti

Photograph showing buildings under construction at Arcosanti

Photograph showing a group of people working on construction of vaults at Arcosanti