Piazza Roma is the town’s main public space. Originally conceived for rallies, it was designed as a large and unified open space. This square is framed by the main institutional buildings: the San Ponziano church, the Fascist party building, the town hall, the post office, the theatre, and the OND building (community centre for the mine workers). Piazza Roma was the first element of the planned town, built on a plateau. This open and central square was conceived as a ‘panoramic terrace’ offering views on the surrounding landscapes and appears as an independent space within the ample town centre of Carbonia. Piazza Roma is a large rectangle enclosed by public buildings on three sides, with a fourth side that opens up to the sea and the mining complex. The space, the buildings and the design of the streets combine in a coherent way. In contrast to other planned towns, the square fulfils both civic and religious functions within the same space. However, the space is divided by different pavements that recall the different surface textures of the adjacent buildings.