The library of the United States Congress has recently added and made ​​available through its Prints & Photography Catalog a wonderful series of photographs from the early ’900 really interesting.

These photographs on a New York City still under construction, historic buildings like the Flatiron or Penn Station , the Knicherbocker Hotel (now the Building) or the bridge of Williamsburg . Regardless of which side is the look, these black and white photos are not only a beautiful piece of photographic history, but also something that over time became part of common history. Enjoy!

HERE the complete gallery!