Join the crowds for two more days to pay tribute to NYC’s Greatest Generation at the revealing, reflective exhibition, WWII & NYC created by the New-York Historical Society. If you can’t get there in person, take a look at the synopsis here, but in the galleries there are surprises at every turn. The slideshow gives you a glimpse.

Right inside, you’ll find a line-up of people checking out a portion of the actual 1938 Cyclotron, a kind-of atom smasher that physicists at Columbia University were using confirm nuclear fission. It’s also surprising to see an interactive map of where “The Manhattan Project” was actually located in Manhattan. At Fifth Avenue and 29^th Street, the Army had 300 people on the 22^nd Floor of 261 Fifth sourcing materials for the first atom bomb. Other teams were working in the Woolworth Building and at 270 Broadway.

People also cluster around the interactive map of New York’s harbor, which explains how all those interesting-looking, now quiet big buildings, forts, and warehouses along the shore were once alive with 3.3 million active duty service men and women headed for Europe and North Africa. Take this video tour and see it then and now:

And the show would not be complete without a in-depth look at the activities of the Brooklyn Navy Yard and the rise of Rosie the Riveter. Watch this video to experience what it was like from a woman who lived it:

The show includes stories about how Tito Puente, Jacob Lawrence, filmmaker Francis Lee, MoMA, the Metropolitan Museum of Art, Maiden Form, Nabisco, and countless other New York people and companies joined in to the war effort. Check out additional videos expertly produced by NYHS on line. You’ll never look at these City streets or harbor the same way again.