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MONDAY

Unless you run in architectural circles, you’ve probably never heard of Hedrich Blessing. But the Chicago-based firm has, since its founding in 1929, produced more than 300,000 architectural photographs, including images of buildings designed by Frank Lloyd Wright, Ludwig Mies van der Rohe, Eliel Saarinen, and Philip Johnson. A selection of 80 color and black-and-white photographs by members of the firm is now on display at the National Building Museum—most of which are skillful, if suffused with artsy pretension. The images are also nearly always devoid of people; as Tony Hiss notes in the exhibition catalog, Hedrich Blessing specializes in documenting “a special, passing moment in the life of a building, those hushed few days when the contractors have moved out and the tenants have yet to move in.” Hear more about the firm and its handiwork when Hedrich Blessing senior partner and photographer Nick Merrick discusses Seventy Years of Photography at Hedrich Blessing at 6:30 p.m. at the National Building Museum, 401 F St. NW. $17. (202) 272-2448. (Louis Jacobson)