Century Club, ca. 1905-1920.

The Century Association (also called the Century Club) is a private social club established in 1847 as a community to promote interest in the fine arts and literature. The club evolved from the Sketch Club, founded in 1829 by editor and poet William Cullen Bryant. The first permanent headquarters for the club was purchased in 1857. The townhouse at 42 East 15th Street (later nos. 109-111) was home to the organization's activities through 1891 when they moved to a new McKim, Mead and White-designed building on 43rd Street. Rendered in a formal Italian Renaissance Revival style, the structure has remained the headquarters for the secretive club since then. Particular architectural features of note include the massive arched entrance, the wreathed round windows at the third-floor level, and the ornate cornice.

The 1967 LPC designation report for the building states, " The roster of Centurions reads like the "Who's Who" of American Arts and Letters." Members of the club have included its architect Stanford White, painter Winslow Homer, Louis Comfort Tiffany, and FDR.

The club began admitting women in the late 1980s after a prolonged legal battle. Today the club has a membership of around 2500 people, including former Mayor Bloomberg, documentarian Ric Burns, author Robert Caro, and any number of unknown lawyers, doctors, and business people.