to resemble piers. The auditorium facade at the west is seven stories high, with six window openings on each story. An electrical substation for the New York City Subway exists immediately west of the auditorium. Interior The Ed Sullivan Theater is housed in the western portion of the "L"-shaped site, along 53rd Street. The neo-Gothic auditorium was purposely designed to resemble a cathedral, uniquely among structures that were designed as Broadway theaters. The theater was equipped with ventilating and heating/cooling systems that were advanced designs for the 1920s. In a report about the Ed Sullivan Theater, the New York City Landmarks Preservation Commission (LPC) could not identify a reason why the theater was designed in the neo-Gothic style as opposed to the more common Adam or neoclassical styles. The office building lobby has terrazzo-and-marble floors; plaster wall panels with marble wainscoting; a bronze mailbox; a plaster vaulted ceiling. Four elevators lead from the office lobby to the upper floors, and a stair with a cast-iron balustrade also leads up from the office lobby. The office stories were designed with high ceilings and column-free spaces. Each story was originally arranged with a narrow elevator vestibule, which has been replaced on most floors. The office stories were otherwise decorated in a utilitarian fashion. Arthur Hammerstein reportedly kept a bar room in his office. Among the tenants of the office stories are the Mayor's Office of Film, Theatre & Broadcasting, a New York City government agency on the sixth floor. Entrance vestibule and lobbies Generally, the vestibule and lobbies have marble floors, cast-stone wall panels, and cast-iron radiator grilles. The four double doors on Broadway lead west to a small theater vestibule, which is irregular in shape. The floor of the vestibule has marble panels in a rhombus pattern. The vestibule's walls contain baseboards made of veined marble, above which are cast-stone wall panels that are designed to resemble travertine. The walls contain shallow archways. The north wall contains a cast-iron radiator grille in the Gothic style, which is divided by the arches. The west wall has six bronze-and-glass doors leading to the outer lobby. The vestibule contains a Gothic-style vaulted ceiling made of plaster. Foliate corbels support the ribs of the ceiling, while the center of the ceiling contains a flat rectangular panel. The outer lobby is "L"-shaped and has Gothic design details. As in the vestibule, the outer lobby's marble floor