Here is a small list of building we know where design by Hellmuth, Obata _and_ Kassabaum in New York City. List may be incomplete.
More buildings built by Hellmuth, Obata & Kassabaum on Histograd
On list
On map
Street view
New York Map
3 items in this list for New York City, viewed 3710 times
New York Architecture
Any Manhattan adress on a 1885 map
