Harry Macklowe, the man behind many of Manhattan’s iconic skyscrapers, is no stranger to reinvention, and his conversion of the landmarked One Wall Street into 566 luxury residences represents the largest such conversion in NYC history. Here, he reflects on his quest to transform Ralph Walker’s Art Deco building for a New York bank into a ‘city within a city’ for the people of Downton with 100,000 square feet of amenities – including French luxury department store Printemps’ first US outpost.