New York City is a center for technology, culture, cafes, bars and restaurants, fashion, music and the arts, R&D, finance, and business. It has one of the largest and most famous skylines in the world, dominated by the famous Empire State Building. New York City is the largest city by population in the United States. The Metropolitan Area includes the five boroughs of "The Big Apple" (Manhattan, Queens, Brooklyn, Bronx and Staten Island), southern parts of New York State, northern New Jersey, and southwestern Connecticut and is the largest metropolitan area in the United States. Washington, D.C. is the capital of the United States of America and the seat of its three branches of government. The city offers many historic sights, shopping, dining, and nightlife befitting a world-class metropolis and visitors find the city modern, exciting, and cosmopolitan.