Brooklyn
Brooklyn is a borough of New York City that is gentrifying rapidly because Manhattan has become too expensive. A lot of recent college graduates, including Columbians, live here, especially in neighborhoods like Williamsburg (for wilder, artsy types) and Park Slope (for more traditional, bookish types). These neighborhoods have associated satellites and spheres of influence in order to encompass all income levels of their respective demographics. There are also mostly disinteresting neighborhoods inhabited by Brooklyn's dwindling native population, all of which are largely ignored by the urban intelligentsia or else speculated upon as the next launch pad for gentrification. All of this makes the geography of Brooklyn somewhat complicated. It is recommended you not attempt to learn it until you've graduated and can correctly identify yourself as jaded by Manhattan.