Termantia. Roman Urban development The Roman conquest, started in 218 BC, promoted the almost complete romanization of the Iberian Peninsula. Roman culture was fully assimilated by the local population. Former military camps and Iberian, Phoenician and Greek settlements were transformed into large cities where urbanization highly developed in the provinces; Augusta Emerita in the Lusitania, Corduba, Italica, Hispalis, Gades in the Hispania Baetica, Tarraco, Caesar Augusta, Asturica Augusta, Legio Septima Gemina and Lucus Augusti in the Hispania Tarraconensis were some of the most important cities, linked by a complex network of roads. The construction development includes some monuments of comparable quality to those of the capital, Rome. Constructions Roman civil engineering is represented in imposing constructions such as the Aqueduct of Segovia and the Acueducto de los Milagros in Mérida, in bridges like the Alcántara Bridge, Puente Romano over Guadiana River, and the Roman bridge of Córdoba over the Guadalquivir. Civil works were widely developed in Hispania under Emperor Trajan (98-117 AD). Lighthouses like the one still in use Hercules Tower in A Coruña, were also built. Ludic architecture is represented by such buildings as the theatres of Mérida, Sagunto, Cádiz, Cartagena, and Tarraco, amphitheaters in Mérida, Italica, Tarraco or Segóbriga, and circuses in Mérida, Toledo, and many others. Religious architecture also spread thougout the Peninsula; examples include the Roman temples of Barcelona, Córdoba, Vic, and Alcántara, The main funerary monuments are the Torre dels Escipions in Tarraco, the distyle in Zalamea de la Serena, and the Mausoleum of the Atilii in Sádaba, Zaragoza. Roman triumphal arches can be found in Cabanes, Castellón, Medinaceli, and the Arc de Berà near Roda de Berà. Pre-Romanesque The term Pre-Romanesque refers to the Christian art after the Classical Age and before Romanesque art and architecture. It covers very heterogeneous artistic displays for they were developed in different centuries and by different cultures. Spanish territory boasts a rich variety of Pre-Romanesque architecture: some of its branches, like the Asturian art reached high levels of refinement for their era and cultural context. Visigothic architecture From the 6th century, it is worth mentioning the remains of the Cabeza de Griego basilica, in Cuenca and the small church of San Cugat del Vallés, in Barcelona. This one, although very deteriorated, clearly shows a single nave plan that ends in an apse. From the following century are those of San Pedro de la Nave, San Juan de Baños,