Ancient Roman architecture of being in their houses, as they instead would go to public baths, and engage in other communal activities. Many lighthouses were built around the Mediterranean and the coasts of the empire, including the Tower of Hercules at A Coruña in northern Spain, a structure which survives to this day. A smaller lighthouse at Dover, England also exists as a ruin about half the height of the original. The light would have been provided by a fire at the top of the structure. All Roman cities had at least one thermae, a popular facility for public bathing, exercising and socializing.
Ancient Roman architecture were also provided for private villas, town houses and forts. They were normally supplied with water from an adjacent river or stream, or by aqueduct. The design of thermae is discussed by Vitruvius in De Architectura. Roman temples were among the most important and richest buildings in Roman culture, though only a few survive in any sort of complete state. Their construction and maintenance was a major part of ancient Roman religion, and all towns of any importance had at least one main temple, as well as smaller shrines. The main room "(cella)" housed the cult image of the deity