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 the early modern era, and a few are still partly in use. Methods of aqueduct surveying and construction are noted by Vitruvius in his work "De Architectura" (1st century BC). The general Frontinus gives more detail in his official report on the problems, uses and abuses of Imperial Rome's public water supply. Notable examples of aqueduct architecture include the supporting piers of the Aqueduct of Segovia, and the aqueduct-fed cisterns of Constantinople. Roman bridges, built by ancient Romans, were the first large and lasting bridges built. Roman bridges were built with stone and had the arch as the basic structure