Citicorp on Flickr. Now known as 601 Lexington Avenue, the Citigroup Center is one of the most prominent buildings in the Manhattan Skyline thanks to its dramatically sloped roof and unique base, featuring four stilts on each side rather than in each of the corners.Flickr | 500px

Citicorp on Flickr.

Now known as 601 Lexington Avenue, the Citigroup Center is one of the most prominent buildings in the Manhattan Skyline thanks to its dramatically sloped roof and unique base, featuring four stilts on each side rather than in each of the corners.

Flickr | 500px