Au cœur de l'Ardoise is the museum and former slate mine in Belgium.
According to PR-model, aucoeurdelardoise.be is ranked 654,433rd in multilingual Wikipedia, in particular this website is ranked 78,408th in German Wikipedia.
The website is placed before rubytuesday.com and after lodgestdavid133.org in the BestRef global ranking of the most important sources of Wikipedia.
