A geographical location is
exaggerated into its most basic form or, more typically, only a collection of stereotypes and cliches. When a few aspects of geographical locations are the only things widely known about the locations, any story about them is likely to only mention those few aspects.
See also
Artistic License - Geography,
National Stereotypes,
You Would Not Want To Live In Dex,
Canada Does Not Exist,
The Theme Park Version.
The Americas
Europe
Asia
Africa
Australia and Oceania
Antarctica and the North Pole
Various