Interior photograph showing the ceiling of the Octagon, a community building at Construction Camp, Arcosanti

Interior photograph showing the ceiling of the Octagon, a community building at Construction Camp, Arcosanti

Interior photograph of Gallery/North Studio at Cosanti in Paradise Valley, Arizona showing skylight and ceiling structure

Plaster model of Rib Cage Dam site designed by Paolo Soleri in 1962

Model of Veladiga Dam Arcology design by Paolo Soleri

Plaster model of 1962 Rib Cage Dam site design by Paolo Soleri

Plaster model of 1962 Rib Cage Dam site design by Paolo Soleri

Elevation plan of Babeldiga Dam Site Arcology design by Paolo Soleri, from 1970 exhibition at Corcoran Gallery of Art, Washington, DC

Interior photograph showing skylight and ceiling structure at Gallery/North Studio at Cosanti in Paradise Valley, Arizona