Yves Klein's 1961 'Monochromes et feux' exhibition at Haus Lange in Krefeld pioneered in-situ museum installations

From January 14 to February 26, 1961, Yves Klein presented his exhibition 'Monochromes et feux' at Haus Lange in Krefeld. The show was organized after curator Paul Wember invited Klein for a solo presentation at the venue. Haus Lange, originally designed by architect Mies van der Rohe during the 1920s, was not initially intended as a museum space. Klein recognized the unique potential of the building's numerous openings and architectural features. He transformed this opportunity into what is now considered the prototype for in-situ museum exhibitions. The artist's innovative approach to site-specific installation within a museum context was demonstrated through this landmark presentation. This exhibition represents a significant moment in the development of contemporary exhibition practices.