George B. Post gave the New York Stock Exchange an appropriately monumental temple façade. The pristine white marble used for both Post’s original structure and Trowbridge & Livingston’s office building addition distinguishes the Exchange from its granite and brick-clad neighbors. The massive portico makes the presence of the trading floor within. Paul Wayland Bartlett sculpted the figures in the pediment after a design by John Quincy Adams Ward. They represent “Integrity Protecting the Works of Man.” The originals, which had weathered badly, have been replaced by copies in sheet metal. Trowbridge & Livingston’s restrained addition derives most of its visual impact from the richness of its marble cladding and its elegant form.