Architect Joseph Hubert McGuire designed a Renaissance revival structure entered by passing under a colossal portico of six Corinthian columns. Fireproof tiles by Rafael Guastavino cover the porch’s ceiling. With its flanking, twin towers, the church recalls vaguely St. Paul’s Cathedral, Christopher Wren’s London masterwork. Virginia granite and Indiana limestone are used on the exterior. And, like St. Paul’s, a high dome rises dramatically at the crossing of the nave and transepts.