The Sohmer Piano Building, or Sohmer Building, is a Neo-classical Beaux-Arts building located at 170 Fifth Avenue at East 22nd Street, in the Flatiron District neighborhood of the New York City borough of Manhattan, diagonally southwest of the Flatiron Building. Designed by Robert Maynicke as a store-and-loft building for real-estate developer Henry Corn, and built in 1897-98 it is easily recognizable by its gold dome, which sits on top of a 2-story octagonal cupola.