of illumination. The ceremonial offices of the governor, lieutenant governor, treasurer, and auditor are located on the first floor of the building. The relocation of the governor's working office to the Vern Riffe Center for Government and the Arts, located across High Street from the Statehouse, was originally a temporary action taken while the historic building was undergoing an extensive restoration and upgrading. At the completion of the project the governor, George Voinovich preferred the larger, more modern space and did not return to the Statehouse office except for occasional ceremonial use. Voinovich's successor Bob Taft used the historic governor's office in a similar way, as did former governor John Kasich. Kasich's immediate predecessor, Ted Strickland, however, used the Statehouse office on a regular basis. Strickland considered the presence of the Governor in a building where the Legislature also works as both symbolic and practical examples of how the parts of government relate to each other. Like Strickland, current governor Mike DeWine uses the Statehouse office on a regular basis, although his staff remains based in the Riffe Center. The Ohio General Assembly chambers are on the second floor. Although in general their appearance is similar to their original appearance, the rooms have been modernized in many ways. Modern information and communication capabilities have been added. The Atrium, which connects the Statehouse with the Senate Building, is a large open space which hosts government functions and ceremonies as well as various meetings and events. It is constructed of the same limestone as the two adjoining buildings. There are a great number of portraits of governors and lieutenant governors contained in hearing rooms and offices throughout the building, and in public spaces there are several large scale artworks that memorialize individuals or events significant to the state or the nation. Ohio artist Howard Chandler Christy is represented with two paintings that depict the signing of the Treaty of Greenville, a seminal event in state history, and a painting that honors another Ohio native, Thomas Edison. President Abraham Lincoln visited the building on three different occasions, and a large marble bust erected after his death memorializes him and also depicts the Union victory at Vicksburg. The floor of the Statehouse rotunda is composed of almost 5,000 individual pieces of marble, all cut and fitted by hand. The design at the center of the floor traces the development of the United States: the