To understand Bilbilis is necessary going through its ravage and dry places which make the ancient accession a difficult place but with a singular beauty.

    It is placed in the hillside of three contiguous mountains: Bámbola, Saint Paterno and Saint Bárbara, vigilant of natural roads: Jalón, Jiloca and Ribota, routes toward the Ebro, The Levante coast and the tableland (Meseta).

    Bilbilis is consequence of its topography. Its town planning doesn’t bring into line the typical Roman tracing but it isn’t considered an isolated case because they exist parallelisms in other cities of the Empire. When the Italic Bilbilis reaches the range of Municipium, it suffers a deep remodelling within the reform context carried out by August, conceding to the city the aspect of Municipium Civium Romanorum, with the morphology of a Roman City.

    This remodelling requires an important human and economical effort what indicates the development in that moment and the will to urbanize the city. But the magnitude of the public elements contrasts with the technical pragmatism with which it is solved the urban problems, beginning by the materials obtainment for the constructions, all of these from the nearly environment, local stone though it is important to indicate that materials imported from other areas were found.
The central part remains were reserved for the most relevant monumental set and that articulated the rest.

     In the interior part, the streets were ordered on a regulatory plan and they were distributed in terraces to accommodate the houses. The terraces system permits an urban order, it can be dug and filled according to the case.