Originally considered the Toy District, Flatiron is a commercial area with quirky details. Publishers, advertising agencies and tech start-ups have replaced once dominant clothing and toy manufacturers, inspiring Flatiron’s nickname “Silicon Alley.” Discrete luxury apartment buildings are nestled between storefronts. Even though Flatiron is heavily influenced by its commercial venues, including the big-box retailers that dominate Sixth Avenue, the neighborhood has unusual destinations. The Flatiron Building, one of the oldest New York skyscrapers, is famously shaped like a triangle. Moving uptown, the Museum of Sex and Gershwin Hotel add diversity to the uniform architecture of the area. Flatiron is a commercial area with modest dabs of color.