Marcel Duchamp at K20, Düsseldorf 2012:
René Magritte at K20, Düsseldorf 2012:
Brice Marden at K20, Düsseldorf 2012:
Isa Genzken at K20, Düsseldorf 2012:
Olafur Eliasson's presence at the show alone is already worth the visit. His installations Window Projection, Your Roundabout Movie and Seeing Yourself Seeing are the best of the show.
Video from Rabenvater77's youtube channel
Other outstanding works include those by Gerhard Richter, Ellsworth Kelly, Josef Albers and Sabine Hornig. I want to share here the picture of a window I took a couple of years ago in Köln: