ATLANTA (AP) — Atlanta Mayor Kasim Reed says the massive Atlanta Cyclorama painting, which has been on display in Grant Park for the past century, will be moved to the Atlanta History Center in the city's Buckhead area.

Reed announced the move Wednesday, saying it will take two years to complete and also will involve extensive restoration work.

The 128-year-old painting depicts the Battle of Atlanta during the American Civil War.

The mayor said the painting will be housed in a new 23,000-square-foot addition to be constructed at the Atlanta History Center.

The painting, which dates to 1885, has been shown in Grant Park since 1893 and was moved to its present building in the park in 1921. A description from the Atlanta Cyclorama says the painting weighs more than 10,000 pounds and has a 358-foot circumference.