The center room in the Ohio Statehouse is the Rotunda. In the top of the dome, a glass skylight is 120 feet above the marble floor. The center of the skylight shows the 1847 version of the Great Seal of the State of Ohio. The room is painted the same historical colors as it was in 1861, when the Staehouse was completed. The floor is composed of 4,957 peices of marble and is 64'5" in diameter.