"Decoration," Joyce Kozloff has said, "is where painting and sculpture meet architecture." For the lobby of One Penn Center, the building that serves as an entrance to Suburban Station, she complemented the elaborate Art Deco architecture with two highly decorative and symbolic mosaic murals, which were commissioned by developer Richard I. Rubin as part of the overall renovation of this 1929 building.

Galla Placidia in Philadelphia alludes to the mosaic interior of a mausoleum built in Ravenna, Italy, for the fifth-century Byzantine empress Galla Placidia. In Kozloff's work, vertical columns of gold, dark red, and brown create an illusionary three-dimensional vault. At the top of the vault, within a patterned arch, the figure of William Penn stands holding the charter of Pennsylvania in his hand against a blue sky. (The corresponding site in the Byzantine mausoleum bears a Christian allegory of Christ as the Good Shepherd.) Topkapi Pullman, on the opposite side of the lobby, includes floral motifs adapted from the harem rooms of the Topkapi Palace in Istanbul. Through an arched doorway the viewer sees a streamlined image of "The Standard Railroad of the World" —borrowed from an Art Deco poster for the Orient Express—that captures the magic associated with railroads.

Adapted from Public Art in Philadelphia by Penny Balkin Bach (Temple University Press, Philadelphia, 1992).