New York City — Warner Bros. will open the first official Harry Potter flagship store in the heart of New York City next to the iconic Flatiron building at 935 Broadway. Opening in summer 2020, the store will house the largest collection of Harry Potter and Fantastic Beasts products in the world under one roof with everything from personalized robes and Bertie Bott’s Every Flavor Beans to a brand-new range of house wands with a design exclusive to the New York location. Spanning three floors and over 20,000 square feet, …