The 4th Echigo-Tsumari Art Triennial, dubbed the world’s largest outdoor art festival, is currently held (July 26 to Sept 13, 2009) in the Echigo-Tsumari region, encompassing Tokamachi City and Tsunan Town in Niigata Prefecture, Japan.
Artists from 38 countries collaborated with local residents and urban supporters to create over 350 artworks in rice paddies, abandoned houses, and closed schools etc. Check the event’s official website for more pics and details.