Tarragona and its surrounding area retains important traces of the Roman influence in the Iberian Peninsula. The archaeological complex of Tarraco was declared a World Heritage Site in 2000: the urban development of the city, as well as the density and the quality of the remains, make it a universal and incomparable asset.
The archaeological complex includes several monuments from the 3rd century BC until the 6th century AD, which are very well preserved. All of these are characteristic of provincial capitals, as was ancient Tarraco. The walls are notable for being the oldest construction in the city and an example of military engineering. Of the forum, the large square in which much of public life was focused, a section of arcade of the Basilica and part of a street are preserved; the rest of the complex is still hidden beneath the footprints of the modern buildings.
The theatre was built in an area outside the walls, very close to the forum and, as was usual, made use of the slope of the land. The three elements that define a Roman Theatre have been partially preserved: cavea (or the tiered seating), orchestra and scaena (stage). In the circus, the space where the cart races were run, a good part of the vaults and some sections of terracing, the remains of the façade and the podium, can be seen today, as well as some of the monumental doors through which the building was accessed.
But without doubt, the amphitheatre is the most iconic of the Roman trail in the city, and completes the trilogy of theatrical buildings. The characteristic arena is present – where all the spectacles were performed - surrounded by the cavea to accommodate the public; the remains visible today in the arena are from the Basilica and the Romanesque church of Santa Maria del Miracle ( 12th century), built on the same spot where the popular Saints of Tarragona, Fructuós, Auguri and Eulogi, suffered martyrdom.
On the outskirts of the city, near the Francolí River, the Early-Christian Necropolis constitutes one of the most extensive and important burial areas of Tarraco: this exceptional cemetery is considered the largest and most important in the whole of the west of the Roman Empire, with more than 2,000 burials.
Around Tarraco we find other buildings of great importance such as the Ferreres Aqueduct (Devil's bridge), the Triumphal Arch of Barà, the mausoleum of Centcelles, the Mèdol quarry and the Villa of Els Munts, among others.
Founded as a military camp by Gnaeus Cornelius Scipio, Tarraco prospered both thanks to its coastal location and to its position in relation to the land routes to the interior of the peninsula. Thus, the city became a Roman colony, head of a conventus -a judicial demarcation - and capital of the province of Hispania Citerior and Tarraconensis.
Beyond speculations about whether the building was a mausoleum or a villa during the Roman era, the roman complex of Centcelles (Constantí) is unique for its 4th century mosaics. Exceptional architectural testament of the late-Roman period in Catalonia, since the year 2000, it has been included in the set of monuments of the ancient Tarraco which were declared a Unesco World Heritage Site.
The oldest remains of Centcelles are from a small rural building from the 2nd -1st Century BC, which later became a magnificent villa with a baths complex. The most notable area is the closed circular room with a dome where the mosaics are found. These are considered to be the oldest Christian-themed dome mosaics of the Roman world and are exceptional for their good state of preservation. They represent several scenes, organised into three areas: a hunt on the lower section, biblical scenes from the Old and the New Testament in the central part and figures of the four seasons at the top.
From the study of these mosaics and mural paintings, one could think that the villa was a mausoleum. Even so, its interpretation is still uncertain. The first hypothesis of the researchers suggested that the mosaics made reference to the tomb of Constant, son of the Emperor Constantine the Great. More recent researches, however, think that Centcelles was the late Roman villa of a notable person in the ecclesiastical or civil hierarchy.
The historical and monumental importance of the old Tarraco is reflected in the current Museu de Tarraco (Museum of Tarraco, MNAT), a reference centre for learning about life in this period. Formed during the first half of the 19th century, the MNAT is the oldest Museum in Catalonia within its field and its extensive collection masterfully illustrates the process of Romanisation of the Iberian Peninsula.
Located in a new building since 1960 in which a fragment of the wall has been preserved in situ underground. Among the most outstanding pieces recovered from ancient Tarraco, you can see part of a medallion (clipeus) with the representation of Jupiter-Ammon, the altar dedicated to the Numen of Augustuses (the divine power), a pedestal of a statue with an inscription dedicated to the genius of the Colonia of Tarraco, the statues of Bacchus, Hercules, Claudius and Minerva, the portrait of Nero Julius Caesar and the sarcophagi of the Lion and the Pedagogue.
Meriting their own chapter are the high-quality mosaics which are preserved in the Museum, such as the head of the Medusa -the best of those found in Tarraco- from the residential area of the city; one representing Euterpe, Muse of music, discovered in the Roman villa of Els Munts (Altafulla); the tombstone of Optimus, mosaic with inscription, found in the Early-Christian Necropolis in Tarragona; and the mosaic of the Fish which decorated a room of the Roman villa of Callípolis, in the municipality of Vila-seca.
Among the most extraordinary pieces at MNAT, is an articulated ivory doll found in the sarcophagus of a girl in the Necropolis of Tarraco and the bronze lamp decorated with a representation of a theatrical mask from the Roman villa of la Llosa.
In addition to the Archaeological Museum, MNAT manages the Necropolis of Tarraco, the Roman villa of Els Munts (Altafulla) and the Roman Complex of Centcelles (Constantí). It also includes the famous monuments of the Arch of Berà and the Tower of the Scipios – situated on the Via Augusta – as well as the Roman Theatre in the city. A complex of the highest order which has been a World Heritage Site since 2000 and which takes the visitor closer to a fundamental period in European history.
With 42 painted figures and 260 other images carved into the rock, La Roca dels Moros del Cogul, in Les Garrigues, is one of the most outstanding and best-conserved rock-art sites in Catalonia. Amongst the most outstanding scenes depicted are a hunting scene and a phallic dance, an exceptional representation of a ritual event, which lends credence to the idea of the cave being a place for religious practices.
This area of Les Garrigues has been inhabited continuously by humans since the Paleolithic period and the cave was used for about 5000 years as a place of worship. The last hunter-gatherers (8th - 5th millennium BC) left behind paintings known as Levantine art. Later, from the 5th- 2nd millennium BC, Neolithic groups covered up the reliefs in the rock to draw representations of their own beliefs (diverse representations that fall within the classification of schematic art ). Researchers have also identified later inscriptions from the Iberian and Roman periods, though many are illegible.