New York City is composed of five boroughs. While Manhattan and Staten Island are islands, Brooklyn and Queens are geographically part of Long Island, and the Bronx is attached to the US mainland. The islands are linked by bridges, tunnels and ferries.
Manhattan is roughly 13.4 miles long and about 2.3 miles wide at its widest. Except at it's northern and southern tips, the borough's avenues run roughly north and south, and streets run east and west.