Photo: Wikipedia Commons, Roy Googin, 22 June 2015.
The entire 
Triborough Bridge in a single
image.  
Left: Queens; 
center: Randall's Island; 
right:
Manhattan; 
bottom: Bronx.  The Triborough Bridge was one of the largest
public works projects of the Great Depression, and even more expensive than the
Hoover Dam[1].
References:
- Caro, Robert, The Power Broker: Robert Moses and the Fall of New
York. New York, Knopf (1974), pp.440-443.