[In-person tour] Towering above the narrow streets of 17th-century Nieuw Amsterdam are some of the city’s finest 20th century skyscrapers, bringing Art Deco flash to the sober precincts of the financial district. Included are the Gothic-modern fantasy of the Irving Trust tower at 1 Wall Street by Ralph Walker, once voted the “architect of the century” by his peers, and the Art Deco encrusted Cities Service headquarters at 70 Pine Street. A new insurance district on John Street created opportunities for architects familiar from other parts of town: Ely Jacques Kahn, better known in the Garment Center; Shreve, Lamb & Harmon, architects of the Empire State Building; and Louis Allen Abramson, designer of automats, hospitals, and synagogues. Tucked in and around the sides of the financial district, smaller but equally stylish Deco survivors include a pair of buildings on West Street by Starrett & Van Vleck, and 29 Broadway by Sloan & Robertson, architects of Midtown’s Chanin Building. For all tours, there are no refunds, cancellations, or exchanges unless we cancel a tour. Online registration closes one hour prior to the tour start time.