Cyclorama Building

The Cyclorama Building is an 1884 building at 543-547 Tremont Street in Boston, Massachusetts that is operated by the Boston Center for the Arts.

The building was commissioned by Charles F. Willoughby's Boston Cyclorama Company to house the Cyclorama of the Battle of Gettysburg, a 400-by-50 foot cyclorama painting of the Battle of Gettysburg. It was designed by Charles A. Cummings and Willard T. Sears. The central space is a 127'-diameter steel-trussed dome which, when it was built, was the largest dome in the country after the United States Capitol building.