Monday's image: February 25, 2019

Craig Kauffman, Le Mur s'en va (The wall goes away), Synthetic polymer on acrylic plastic, 185.4 x 120 x 22.9 centimeters, 1969, Art Institute of Chicago, Illinois

Monday's image: June 27, 2016

Tony Feher, It Seemed a Beautiful Day, Mixed-media installation, Dimensions variable, 2002, San Francisco Museum of Modern Art, California