Brooklyn was a borough of New York City, on Earth's North American continent. The borough was connected to the borough of Manhattan via the Brooklyn Bridge. One community in Brooklyn was Flatbush.
In an alternate version of 1944, Alicia Travers lived in Brooklyn. A building called "Stop 'n' Go Cleaners" had existed in Brooklyn, before the occupation of America by the Nazi/Na'kuhl alliance. (ENT: "Storm Front")