On the façade, four giant pilasters with Corinthian capitals support an entablature and pediment.
Together these elements recall the front of ancient temples, such as the Pantheon in Rome. There is also a grand arch in the center of the façade that is supported, at least visually, by two shorter fluted pilasters. Taken together, the lower façade, with its tall central arch and flanking side doors evoke ancient triumphal arches such as the Arch of Constantine.