GETTYSBURG, PA (AP).- Lovers of modern architecture have won a round in their fight to preserve a half-century-old building at Gettysburg despite efforts by the Civil War purists to demolish the structure to restore the battlefield to its original appearance. The National Park Service has been seeking for a decade to demolish the Cyclorama Building, built in 1958 by famed modernist architect Richard Neutra to house a massive circular painting of the famous 1863 battle which has been relocated. The building is near one of the highest points on Cemetery Ridge, a key defensive position where nearly 1,000 Union soldiers were killed or wounded during Pickett’s Charge. The National Parks Service would like to remove the building to preserve the battlesite, but an architectural preservation group says the building is also historically important. A federal judge in