Logan International Airport in the East Boston neighborhood of Boston, Massachusetts, is one of the 20 busiest airports in the U.S., with over 27 million passengers a year. It serves as a focus city for American Airlines, Delta Air Lines, US Airways, and JetBlue Airways. Continental Connection also operates a small regional hub at Logan. It covers 2,400 acres, has five major runways, and employs an estimated 16,000 people. The airport has service to destinations in the United States, as well as Canada, Latin America, and Europe. The distinctive central control tower, nearly a dozen stories high, is a local landmark with its pair of segmented elliptical pylons and a six-story platform trussed between them.