Downtown near all the courts, there is this federal building that has these really neat colorful curved park benches outside - You can get some really cool angled shots and the colors are just great!  Just try and be discrete if you get shots in of the building (it actually has some great lines and can also make some great photos) otherwise the security on detail will hassle you.

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MAP:

http://maps.google.com/maps?f=q&hl=en&geocode=&q=40%C2%B042′+56%22+N,+74%C2%B00′+11%22+W&ie=UTF8&ll=40.716054,-74.003048&spn=0.00888,0.01369&z=16&iwloc=addr