Brooklyn is a borough of the greater city of New York and is located in the United States of America on Earth. One of its first mentions in an actual game was in Mario's Time Machine, in which upon being asked if he was from Italy (due to his accent) by an imperial ruler in China, Mario says that he is from Brooklyn, New York. Of course, granted the time period, the feudal lord didn't know what Brooklyn was. According to the instructional booklet for Mario Is Missing! and Super Mario 64's Official Player's Guide, Luigi and Luigi grew up in Brooklyn.