NewYork City emerged from World War II as the unquestioned leading city of the world, with Wall Street leading America's emergence as the world's dominant economic power, the United Nations headquarters (built in Manhattan in 1952) emphasizing its political influence, and the rise of Abstract Expressionism displacing Paris as center of the art world.
NewYork City is located at the center of the BosWash megalopolis, 218 miles (350 km) driving distance from Boston and 220 miles (353 km) from Washington, D.C. The city's total area is 468.9 square miles (1,214.4 km²), of which 35.31% is water.
NewYork City's significance as a trading city results from the natural harbor formed by Upper NewYork Bay, which is surrounded by Manhattan, Brooklyn, Staten Island, and the coast of New Jersey.