have been converted into state parks, offering historic preservation of the important structures contingent to their respected battles. State parks include Washington Crossing State Park, Princeton Battlefield State Park, and Monmouth Battlefield State Park. Ocean Grove is one of the largest national historic sites in the United States. Media markets and national sports Depending on the location, different parts of Central Jersey fall into overlapping spheres of influence from New York media market and Philadelphia media market. Portions of Mercer, Monmouth, Ocean, and Middlesex counties are located within both the New York City and the Philadelphia television markets, while the rest of the region belongs wholly to the New York market. While The Star-Ledger has the largest circulation of all newspapers in New Jersey, four Central Jersey newspapers, Asbury Park Press, Home News Tribune, and two Trenton dailies, The Trentonian and The Times and several local papers are published in Central Jersey. New Jersey On-Line, CentralJersey.com and MyCentralJersey.com are web based news services. During statewide political events like Gubernatorial or Senatorial election debates often held in Trenton, partner stations from both the New York and Philadelphia markets pool resources together to co-host the events and bring them to New Jersey homes. Identification with sports teams is also affected by the region's location, and it is not uncommon to find fans of major sports teams of either city. For example, while residents of northern New Jersey root for New York teams, those in the southern part of the state root for Philadelphia teams. The distinction is less clear in Central Jersey. Central Jersey Riptide was a short-lived professional soccer club. Transportation The New Jersey Department of Transportation (NJDOT) operates three divisions in the state: North, South, and Central, which encompasses Hunterdon, Mercer, Middlesex, Monmouth, Ocean, and Somerset counties and portions of Warren County. (Routes 22, 122, 173, 78 and including south of Route 57). Apart from Mercer County, which comes under the auspices of the Delaware Valley Regional Planning Commission, all counties in the region are part of the North Jersey Transportation Planning Authority, a government partner which approves transportation projects for the state. The United New Jersey Railroad and Canal Company traversed the region in 1830, eventually becoming the Pennsylvania Railroad (PRR). NJT's Northeast Corridor Line and the North Jersey Coast were once part of the PRR, as was Amtrak which serves the commuter hub at Metropark, New Brunswick, and