Cornerstone Sonoma is 3 mi. s. at 23570 Arnold Dr. (SR 121). The wine country marketplace features a collection of boutique wineries and tasting rooms, artisanal foods, shops, art-inspired gardens and live music and is home to Sunset's Gardens and Outdoor Test Kitchen. The Cornerstone Gardens are an ever-changing series of gardens, showcasing innovative designs from international and local landscape architects and designers. The five Sunset Gardens highlight food production, the Sunset plant line, bee habitat, cut flowers and composting.