Slideshow: Demolition of Gettysburg Cyclorama building

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. Park Superintendent Bob Kirby said the demolition is scheduled to be completed by the end of April.

Below is a slideshow of the demolition in progress.