Brief SynthesisLocated in the Alsace-Lorraine-Champagne-Ardenne region, the Place Stanislas, Place Carrière and Place d’Alliance in Nancy comprise one of the most harmonious urban landscapes of the Enlightenment, illustrating in an exemplary and masterful way the idea of the royal square as an urban, monumental and central space. The town planning works of Nancy are the most beautiful achievements of the patronage of this prince. Criterion (i): The three squares of Nancy constitute a unique artistic achievement, veritable masterpiece of creative genius. The only variations are destinations or uses of certain buildings that surround them, while conserving the urban public functions. The Place Stanislas has recovered its former splendour.