Counter-Composition XV (1925) by Theo van Doesburg. On display at the Tate Modern in London through May 16, 2010, as part of the Van Doesburg and the International Avant-Garde: Constructing a New World exhibit. On loan from the Museum of Modern Art's Sidney and Harriet Janis Collection.  Photo 4 of 18 in Events this Weekend: 2.4-2.7

Events this Weekend: 2.4-2.7

4 of 18

Counter-Composition XV (1925) by Theo van Doesburg. On display at the Tate Modern in London through May 16, 2010, as part of the Van Doesburg and the International Avant-Garde: Constructing a New World exhibit. On loan from the Museum of Modern Art's Sidney and Harriet Janis Collection.