East Boston is separated from the rest of the city by Boston Harbor and bordered by Winthrop, Revere, and the Chelsea Creek. Directly west of East Boston across Boston Harbor is theNorth End and Boston's Financial District. East Boston was originally a center for shipbuilding, now a neighborhood of ethnic restaurants. The nation's first branch library was built in East Boston in 1870. East Boston's housing is a mixture of old and new, including many restored triple-deckers. Logan Airport, is located here, making East Boston a gateway to people from around the world. Located across Boston Harbor, East Boston residents enjoy fantastic waterfront views of the city skyline.