How to get the best view of Manhattan for free?

a- Climb up to the Empire State with King Kong
b- Take a tour on a mongolfiere or a helicopter lended by Barack
c- Go to Brooklyn
d- Answer d

Of course C !!!
You should try take a round to Brooklyn Heights! You will get one of the best views of New York City: The Statue of Liberty, Verazano Bridge, Brooklyn Bridge, and Lower Manhattan.
This area is also really worthy to get a walk, hang out, shop around, don't miss it, it's cool, it's Brooklyn (pleonasm)!