The Genua reference article from the English Wikipedia on 24-Jul-2004
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Genua

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Genua is a fictional city from Terry Pratchett's Discworld novels. Its most significant appearance in the books is in Witches Abroad. It is in an area called the Swamplands, some distance from the Sto Plains/Ramtops locations of most of the books.

The name Genua is probably based on Genoa, a city in Italy, however Genua bears a striking resemblance to the American South, especially New Orleans. During the events of Witches Abroad the city was ruled by an evil fairy godmother, who was obsessed with fairy tales and thought she could force everyone to be happy. Under her rule the city most obviously resembled a skewed version of Disneyland.