Looking skyward inside the Waldorf Astoria Washington D.C. reveals the architectural heart of the former Old Post Office Pavilion: a vast atrium capped by a steel-and-glass skylight. Spanning multiple stories, this breathtaking space blends industrial innovation with Romanesque design elements—characterized by rounded arches, iron ornamentation, and layered stone and plaster detailing.
Originally completed in 1899, the Old Post Office was designed by Supervising Architect Willoughby J. Edbrooke and featured cutting-edge construction for its time, including a steel internal skeleton that allowed for the open vertical space seen here. The atrium once served a practical purpose—allowing natural light into the mail sorting floors—and has since been preserved as a centerpiece of the building’s adaptive reuse as a luxury hotel.
The photo captures the latticework of the skylight, intersected by iron beams and flanked by repeating columned arcades on all sides. Suspended acoustic panels float below the glass ceiling, subtly modern additions to a historic structure. Decorative ironwork and ornamental capitals around the perimeter reflect the building's 19th-century grandeur.
Today, the atrium functions as a public and private gathering space—dramatic yet peaceful, airy yet grounded in stone and steel. This is one of Washington D.C.'s few remaining Romanesque Revival interiors on such a monumental scale.
HABS Architectural Survey Standard:
Documented according to standards of the Historic American Buildings Survey (HABS):
Structure Name: Old Post Office
Location: 1100 Pennsylvania Avenue NW, Washington, D.C.
Style: Richardsonian Romanesque
Date of Construction: 1892–1899
Architect: Willoughby J. Edbrooke
HABS Reference Number: DC-275
