The Flatiron Building in NYC, was one of the buildings I became interested in as I researched information for my Halfway Brook books. Here is a collection of my posts with the addition of a typical floor plan.
Typical floor of the Flatiron Building in Public Domain.Old Postcard showing Madison Square and the Flatiron Building. Austin Collection.
Flatiron building at night Flatiron Building under construction, 1902. Photo: Library of Congress, Prints and Photographs Division: Detroit Publishing Co., LC-D401-14278.