Boussu is a Walloon municipality located in the Belgian province of Hainaut. As of January 1, 2006, Boussu had a total population of 20,058. The total area is 20.01 km², which gives a population density of 1,002 inhabitants per km².
Grand Hornu, an early 19th-century planned industrial city, is located in Hornu, a former municipality which is now part of Boussu.
, the Thierry de Hennin Liétard funerary memorial (1406-1430).
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