They are there
The Baths of Caracalla were Roman thermae, built between 212 and 216, during the reign of the Emperor Caracalla, and among the greatest ever built by Romans.\n\nThe complex contained an internal section, the baths structure, surrounded by a garden and an external wall, build later and completed by Diocletianus, 225 m long, 185 m wide; Every day 2000 to 3000 romans could use the baths, which had two Palaestras (gyms), two public libraries, one for latin text and the other for greek ones, large rooms where one can partake of light meals and drink hot spicy wine, an hypocaus system of underground burning coal to mantain a constant temperature inside during wintertime.\n\nThe entrance leads to the Apodyterium, where people leave their clothes, and could decide to go to the gyms, to the Laconicum (turkish bath) or follow the traditional course of Tepidarium (warm room), Calidarium (hot room), and finally to get frozen by the icy waters of the Frigidarium (cold room). There were also two Natatio, normal swimming pools, one inside the building and the other outside. All the rooms were covered by mosaics, precious marbles and statues, and the water was provided for by an extesion of the Acqua Marcia, and internal reserves could hold 80,000 litres of water.\n\nFor people that intend to pray, there was in the underground floor a temple to Mithra, in which the initiated to the mysteries could celebrate rituals.