37 West 93rd Street #29

A two-bedroom-plus co-op on the Upper West Side inside The Norman, the 1909 building Julius Tishman & Sons raised half a block from Central Park when this end of the neighborhood was still considered its frontier. Architect Charles B. Meyers set six floors of gray brick above a rusticated limestone base, blending Beaux Arts and Renaissance Revival lines. Inside, the apartment keeps its pre-war proportions: 9'6" ceilings, a grand living and dining room, open city views, and a flexible third room.

An early resident, Alice Minnie Herts, founded the Children's Educational Theatre here in 1903, with Mark Twain serving as its board president and calling it "the greatest citizen-making force of the century." The unit comes as a blank canvas, ready to be drawn.