The coalfield, the corons, the tiles, the coal. Coal, in fact. Centuries of extraction of the precious ore have shaped a unique landscape that has been preserved to this day. Huge slag heaps, mining company offices, railroads, headframes, religious buildings, sports facilities - all bear witness to a past industrial model. All 109 sites are [Unesco World Heritage sites>>https://whc.unesco.org/fr/list/1360/gallery/].