There are lots of tall buildings in NYC, which means that there are lots of water tanks on top all of those tall buildings, but this one building has the best water tower in Brooklyn that disguises the water tank.
This is the big post office down by the courthouses.

And it’s there behind that big arched opening that the water tank is hidden.

It certainly is a studly and stealthy place to keep a water tank.

I’ve seen the tower hundreds of times, and only recently did I notice the water tank hiding in there.
Seeing it barely sticking out over the opening makes it appear in my head as if it is really a man wearing an iron mask who is locked away from unknown reasons.
Just got to see this beautiful picture. Did you know that in New York City a water tower is required in all buildings higher than six stories? It has to do with the water pressure.