Coney Island is a peninsular neighborhood and entertainment area in the southwestern section of the New York City borough of Brooklyn. The neighborhood is bounded by Brighton Beach to its east, Lower New York Bay to the south and west, and Gravesend to the north, and includes the subsections of Sea Gate to its west and Brighton Beach to its east. Coney Island was formerly the westernmost of the Outer Barrier islands on the southern shore of Long Island, but in the early 20th century it became a peninsula, connected to the rest of Long Island by land fill.
The origin of Coney Island's name is disputed, but the area was originally part of the colonial town of Gravesend. By the mid-19th century it had become a seaside resort, and by the late 19th century, amusement parks had also been built at the location. The attractions reached a historical peak during the first half of the 20th century. However, they declined in popularity after World War II and, following years of neglect, several structures were torn down. Various redevelopment projects were proposed for Coney Island in the 1970s through the 2000s, though most of these were not carried out.