Wikipedia (French) https://fr.wikipedia.org/wiki/Quartier_du_port_(Nice)#Arson_.28place.29
More information at nice-tourism.com http://www.nice-tourism.com/en/nice-attractions/public-squares-and-venues-in-nice/place-arson.html
Address 25 Rue Scaliero, Nice 06300, France
Coordinates 43°42'7.286" N 7°17'9.748" E