This sign at the Nashville Parthenon reads:

These bronze doors weigh 7.5 tons each. They are 7 feet wide, 24 feet high, and 1 foot thick. They are considered to be the largest matching set of bronze doors in the world. The doors are balanced on steel hinges with ball bearing collars at the top and bottom so they move easily. In contrast, the doors of the ancient Parthenon were probably made of wood, covered with bronze plate, thus needing the semi-circular track in the floor to bear part of the load. These doors do not use the track.

Nashville architect Russell Hart designed these doors, using figureheads sculpted by Leopold Scholz and Belle Kinney Scholz. They were manufactured by the General Bronze Company, Long Island, New York. These doors were installed in 1930, and open and close daily.