Brooklyn is a borough of New York City, coterminous with Kings County, located in the U.S. state of New York, the most populous county in the state, and the second-most densely populated county in the United States. Named after the Dutch village of Breukelen, it borders the borough of Queens at the western end of Long Island. Brooklyn has several bridge and tunnel connections to the borough of Manhattan across the East River, and the Verrazzano-Narrows Bridge connects it with Staten Island.

The Brooklyn Bridge is a hybrid cable-stayed/suspension bridge in New York City. It connects the boroughs of Manhattan and Brooklyn, spanning the East River. The Brooklyn Bridge has a main span of 1,595.5 feet (486.3 m) and a height of 133 ft (40.5 m) above Mean High Water. It is one of the oldest roadway bridges in the United States and was the world's first steel-wire suspension bridge, as well as the first fixed crossing across the East River.

Manhattan, often referred to as the City, is the most densely populated of the five boroughs of New York City, and coextensive with the County of New York, one of the original counties of the U.S. state of New York. Manhattan serves as the city's economic and administrative center, cultural identifier and historical birthplace. The borough consists mostly of Manhattan Island, bounded by the Hudson, East, and Harlem rivers; several small adjacent islands; and Marble Hill, a small neighborhood now on the U.S. mainland, physically connected to the Bronx and separated from the rest of Manhattan by the Harlem River. Manhattan Island is divided into three informally bounded components, each aligned with the borough's long axis: Lower, Midtown, and Upper Manhattan.

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