A nymphaeum is a monumental fountain. This one was probably built at the end of or in the  first half  of the first century A.D..  It was located at the end of the cardo maximus, north of the city. Its foundations are still visible today. It was built in two parts: the facade decorated with columns and the tank at the back. It was fed by the aqueduct. The front of the basin measured 21 m by 7 m for a depth of 1.50 m. The front wall was 9 m high and 1.60 m thick. Behind the Nymphaeum are the foundations of the water storage tank. The tank measured 10x27x3 m. Water from the reservoir supplied the whole town through pipes made of clay, stone and lead. In all, there were four fountains in the city. The ruins of the fountain at Tiberia platea and that behind the Triple Gate to the west of the city suggest that they were also of monumental scale. Only the foundations of the Nymphaeum are preserved: we therefore do not know the ornament of the facade or the inscriptions relating to it. However, the fountain certainly resembles those found throughout the Roman world.