The Sanctuary of Hercules Victor is one of the sacred complex of Roman Republican era and is located in Tivoli, near Rome. It is a spectacular structure of massive proportions, built on a terrace overlooking the River Aniene, a former long-distance transhumance who would later become the Via Tiburtina. The road was included in the sanctuary with a covered walkway (Via Tecta). The Sanctuary of Hercules consisted of three main structures: the theater, which exploited the natural sloping of the ground, a large square bordered by arcades and the real temple centrally located in the square and in line with the theater. As a result of the decay of a place of worship, the presence of water pipes encouraged the establishment of mills, foundries and armories, the first hydroelectric power station from which a current distance has been launched alternating and, finally, of a paper mill. The Sanctuary has therefore today to an extraordinary wealth of industrial archeology.