New York's mass transit system offers a fast, inexpensive way to see the city. Transportation from the area's three major airports is available via bus, subway and trains. The New York City subway, one of the largest in the world, is the quickest, cheapest way to travel. You can use it to get to most popular tourist destinations including Central Park, the Statue of Liberty and the Brooklyn Bridge. While slower than the trains, the city's extensive bus network offers a scenic alternative.
Prepaid MetroCards can be purchased at manned station booths and vending machines in subway stations. Multiple ride cards are available for discounted rates. Riders can transfer at Pennsylvania and Grand Central stations for any number of trains to surrounding areas [source: Metropolitan Transit Authority]. Private ferry service also offers riders easy access to destinations along Manhattan's East and Hudson Rivers, offering spectacular views of the city's famous skyline.