New York City is located in the southernmost tip of New York State and is the geographical and demographic center of both the Northeastern megalopolis and New York. It is renowned for its connection to media and communications, its mix of cultures and immigrants, and its long history of association with American music. The city is situated in the northeastern United States, in southeastern New York State, approximately halfway between Washington D. C.
and Boston. It is one of the world's major cities, along with London, Tokyo and Paris, and is home to an almost unparalleled collection of museums, galleries, concert halls, media outlets, international corporations and stock exchanges. New York City is heavily dependent on its vast public transportation system, but streets are also a defining feature of the city. The New York Fire Department (FDNY) provides fire protection, technical rescue, primary response to biological, chemical and radioactive hazards, and emergency medical services in all five boroughs of New York City.
The island of Manhattan is connected to the outlying districts of New York City and to New Jersey by several tunnels. The arrival of electric lighting led to elaborate theatrical productions and, in the 1880s, New York City theaters on Broadway and along 42nd Street began presenting a new stage form that became known as the Broadway musical. The value of this port expanded considerably in 1819 with the opening of the Erie Canal, giving New York an enormous advantage over the competing ports of Boston and Philadelphia. Ninety percent of diamonds imported into the United States pass through New York, and most of them are handled and cut in the city's Diamond District, on 47th Street, between Fifth and Sixth Avenues.
The largest of these is the Lincoln Center for the Performing Arts, which is actually a complex of buildings that houses 12 different companies, including the New York Philharmonic, the Metropolitan Opera, the New York City Opera, the New York City Ballet and Jazz at Lincoln Center. Like the New York subway system, the PATH operates 24 hours a day - making three out of six rapid transit systems that operate on 24-hour schedules located either fully or partially in New York (the others are part of the “L” in Chicago, the PATCO Speedline that reaches Philadelphia and the Copenhagen subway). Manhattan is also home to many major multinational corporations' headquarters as well as those of the United Nations, Wall Street and several major universities. New York was heavily damaged during the Battle of Brooklyn at the beginning of the American Revolutionary War but was eventually liberated by American forces on November 25th 1783. One of its most iconic features is Central Park - a great example of landscape architecture that serves as an important source of recreation for both locals and tourists alike.