Some of the main roads still follow the routes originally traced 2,000 years ago, and the urban organisation of many old town centers still transcript the cardo and the decumanus of the former Roman camp (especially Paris).

• 一些主要道路仍然保留着两千多年前的样子，许多古老城镇的城镇组织形式仍然遵照古罗马军团步兵第十队的营地（尤其是巴黎）。