Flatiron Building

Trying to illustrate one building a week for a few weeks.

The Flatiron Building, originally the Fuller Building is a triangular 22-story, 285-foot tall steel-framed landmarked building located at 175 Fifth Avenue in the borough of Manhattan, New York City, which is considered to be a groundbreaking skyscraper. Upon completion in 1902, it was one of the tallest buildings in the city at 20 floors high and one of only two skyscrapers north of 14th Street – the other being the Metropolitan Life Insurance Company Tower, one block east.

What building do you think I should do next?