The El Dorado is a cooperative apartment building at 300 Central Park West, between 90th and 91st Streets adjacent to Central Park, on the Upper West Side of Manhattan in New York City. It was constructed from 1929 to 1931 and was designed by architect of record Margon & Holder and consulting architect Emery Roth in the Art Deco style. The El Dorado consists of twin 12-story towers rising from a 17-story base. The building is a contributing property to the Central Park West Historic District, a National Register of Historic Places–listed district, and is a New York City designated landmark.

Eighth Avenue is a major north–south avenue on the west side of Manhattan in New York City, carrying northbound traffic below 59th Street. It is one of the original avenues of the Commissioners' Plan of 1811 to run the length of Manhattan, though today the name changes twice: At 59th Street/Columbus Circle, it becomes Central Park West, where it forms the western boundary of Central Park, and north of 110th Street/Frederick Douglass Circle, it is known as Frederick Douglass Boulevard before merging onto Harlem River Drive north of 155th Street.