Photograph of Cat-Cast House under construction (1960s) at Cosanti in Paradise Valley, Arizona

Photograph of Foundry Apse under construction (1960s) at Cosanti in Paradise Valley, Arizona

Photograph showing Paolo Soleri working on construction (1960s) of Foundry Apse at Cosanti in Paradise Valley, Arizona

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

Photograph showing the interior of a building at Arcosanti with a bicycle visible from a window

Photograph showing people working on construction of Foundry Apse at Cosanti in Paradise Valley, Arizona

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

Interior photograph of Barrel Vault under construction at Cosanti, Paradise Valley, Arizona

Photograph showing a bicycle near a window of a cube (an 8' x 8' living space) at Construction Camp, Arcosanti