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The photographic map of the District on the floor of the new City Museum offers a wealth of detail to walk on: the Capitol dome, the roofs of individual houses, and the tan infield and white chalk lines of RFK Stadium’s baseball diamond. Baseball? On a map made three decades after the Senators left? A museum spokesperson says the image isn’t a secret message from baseball boosters: The District’s Office of Planning gave the museum aerial photos snapped in spring of 1999, when RFK hosted a pair of major-league exhibition games. But Stephen Zack, senior vice president and general manager of three-time soccer champion D.C. United, is crying foul. Zack says he is writing museum officials to protest the snub. However curators got the images, he says, they should have remedied the situation. “I would even argue you could have doctored the photo,” Zack says. —David Morton