UPDATE: The Battle of Atlanta cyclorama painting was moved to the Atlanta History Center as part of a project announced in 2014. The old Cyclorama building in Grant Park has been remodeled as an event space and became part of the Atlanta Zoo.
At 358 feet long, the Cyclorama claims to be the largest oil painting in the world — and the longest-running art exhibition in U.S. history. The in-the-round battle-scape depicting the 1864 Battle of Atlanta has been on display since 1893 and is housed in a Greek revival-style building next to the zoo. Guided tours every hour on the half hour. The Cyclorama is projected to close at its current location June 30, 2015, in preparation for moving.