Commodore Hotel Ballroom ca. 1919
The size of the mammoth Hotel Commodore (Warren & Wetmore, architects), completed in 1919, had 1,956 guest rooms on 28 floors. The hotel at 42nd Street and Lexington Avenue claimed to have the largest banquet and ballroom in North America. It seated 3,500 and hosted many of the country's most important functions. In 1980 the glass-clad Grand Hyatt hotel opened, built over the structural shell of the Commodore.