A meandering walk across the upper west tracts of the Upper West Side, from West 85th to 103rd streets, Broadway to Riverside Drive. We see work by such stalwart Manhattan Deco icons as Sugarman & Berger, Boak & Paris, and Harvey Wiley Corbett, as well as architects less well known for their Deco productions, including Emery Roth and Rosario Candela.

Reservations required. Tour of the Woolworth Building lobby, closed to the public for more than a decade and now open again. The tour includes a detailed look at the building’s unmatched polychromatic terra-cotta exterior, and an in-depth exploration of the lobby and its wealth of ornament, including hidden corners and staircases — plus a special visit to the mezzanine level for an up-close view of its extraordinary mosaic ceiling.

High up on a hill, its streets lined with modest but attractive six-story Art Deco apartment houses, Washington Heights has more in common with West Bronx neighborhoods just across the Harlem River than with the rest of Manhattan. Many of the same architects who worked on the Grand Concourse also designed apartment buildings on or near Fort Washington Avenue – we will see work by Horace Ginsbern, Jacob Felson, Israel Crausman, Miller and Goldhammer, Charles Kreymborg, and H. Herbert Lillien.