Foothills Art Center typically presents group shows, but last summer the entire place — even the Carol and Don Dickinson Sculpture Garden — was given over to a fabulous solo that delved into the abstract and conceptual sculptures and installations of the legendary Charles Parson. The pieces outside were a trio of gongs in the form of hieratically composed tubular metal spires, while inside there were some surprisingly realistic landscape drawings, along with a facsimile of the artist's studio. The exhibit culminated with a group of interactive gazebos — some with audio components — that viewers were meant to walk through. It was a stunning departure for the Golden facility, and one of the best shows Foothills has ever presented.