Thermae Thermae In ancient Rome, thermae (from Greek θερμός "thermos", "hot") and balneae (from Greek βαλανεῖον "balaneion") were facilities for bathing. "Thermae" usually refers to the large imperial bath complexes, while "balneae" were smaller-scale facilities, public or private, that existed in great numbers throughout Rome. Most Roman cities had at least one, if not many, such buildings, which were centres not only for bathing, but socializing, and reading as well. Roman bath-houses were also provided for private villas, town houses, and forts. They were supplied with water from an adjacent river or stream, or more normally, by an aqueduct. The water
Ancient Roman architecture its complex helical structure, was introduced relatively late into architecture. Although the oldest example dates back to the 5th century BC, it was only in the wake of the influential design of Trajan's Column that this space-saving new type permanently caught hold in Roman architecture. Apart from the triumphal columns in the imperial cities of Rome and Constantinople, other types of buildings such as temples, thermae, basilicas and tombs were also fitted with spiral stairways. Their notable absence in the towers of the Aurelian Wall indicates that although used in medieval castles, they did not yet figure prominently in Roman