The influential modernist architect Mies van der Rohe built two private villas, Haus Lange and Haus Esters, between 1927 and 1930. Steel is used as the main structural element for the buildings, with a brick covering, allowing large openings that were not previously possible in load-bearing brick buildings. The buildings in Krefeld have been preserved and are now used as exhibition spaces by the Kunstmuseen Krefeld. Photo Volker Döhne © VG Bill-Kunst, Bonn 2019. Kunstmuseenkrefeld