Roman Paris

Are you looking for traces of Roman Paris?
Try this website maintained by the French Ministry of Culture:
http://www.culture.gouv.fr/culture/arcnat/paris/en/

In Paris, Roman artifacts can be found at the Cluny Museum (http://www.musee-moyenage.fr/ang/index.html) and at the Crypte archéologique du parvis Notre-Dame, the archeological crypt of the Cathedral of Notre Dame.