Maps of New York City / Tri-state Area

When you are in New York City, you can ask subway conductor for a free subway map and sometimes bus maps from bus driver. Also, you can download public transit maps from MTA, Port Authority and NJ Transit. New York City governor also has a great map link.
Subway:
 PDFs: New York City||NY/NJ PATH
Bus:
 PDFs: Manhattan|Brooklyn|The Bronx|Queens|Staten Island||Long Island
Bus+Subway:
 PDFs: Lower Manhattan
Local Railway:
 Links: Long Island Rail Road|Metro-North Railroad|
 JPGs: NJ Transit
 PDFs: NJ Transit
Bike Routes:
 PDFs:Mahattan|Bronx|Queens|Brooklyn|Staten Island
Truck Routes:
 PDFs:The Bronx|Brooklyn|Manhattan|Lower Manhattan|Queens|Staten Island
Parking facilities:
 PDFs:The Bronx|Brooklyn|Manhattan|Queens|Staten Island
Others: Bridge+Tunnel