Paolo Soleri was an Italian-born American architect and urban planner. He established the educational Cosanti Foundation and Arcosanti. Soleri was a lecturer in the College of Architecture at Arizona State University and a National Design Award recipient in 2006. He coined the concept of 'arcology' – a synthesis of architecture and ecology as the philosophy of democratic society. He died at home of natural causes on 9 April 2013 at the age of 93.

Arcosanti is an experimental town with a bronze bell casting business in Yavapai County, central Arizona, United States, 70 mi (110 km) north of Phoenix, at an elevation of 3,732 feet (1,138 m). Its arcology concept was proposed by Italian-American architect Paolo Soleri (1919–2013). He began construction in 1970 to demonstrate how urban conditions could be improved while minimizing the destructive impact on the Earth. He taught and influenced generations of architects and urban designers who studied and worked with him there to build the proposed town.