National Gallery of Victoria, Melbourne, Australia The National Museum of Contemporary Art, Seoul, Korea The National Museum of Modern Art, Tokyo, Japan The Contemporary Arts Museum Houston, Houston The Museum of Contemporary Photography Chicago, Chicago 21C Museum, Kentucky, Kentucky LEEUM Sam Sung Museum, Seoul, Korea The Sol Le Witt Collection, USA Elton John Collection, UK Afinsa Collection, Germany Isac Andic Ermay, MANGO Collection, Spain SISLEY Collection, Italy Calder Foundation, USA