In Czechia, Brno (the 2nd largest city) is often the butt of jokes, especially among people from Prague and Bohemia (the western half of the country). Some news stories about "a man from Brno" honestly read like our version of the Florida Man.
Some news headlines examples here 1 2 3
What place has that kind of reputation in your country? Not necessarily for crime, could be just for bizarre headlines, strange customs, or being widely mocked for any other reason.