GETTYSBURG, Pa. (AP) — Demolition work has begun on the Cyclorama building at the Gettysburg National Military Park that used to house the 377-foot painting depicting a pivotal moment in the Civil War battle.

Workers began tearing down the building last week, and park superintendent Bob Kirby told The (Hanover) Evening Sun that the demolition is scheduled to be completed by the end of April.

The park service has planned to tear down the building since 1999 but the architect’s son and a preservation group opposed the decision, and a court battle ensued that lasted more than three times the length of the Civil War. A court-ordered study last year concluded that demolition was the best course of action....