The ancient Roman art colony was founded between the years 15-10 BC, in the time of Emperor Augustus. The city, consisting of no more than 10 hectares and 1,000 inhabitants, was built on top of a small hill and was enclosed in walls with four gateways. These gateways gave way to the more main roads which came together right in the centre, at the forum or public square. The temple, basilica, the Senate and shops, together with the homes, completed the city.

The water supply for the city of Bàrcino came from two aqueducts that brought the water, one from the Besòs River and the other from Collserola.

Outside of the city and on both sides of the road were the tombs and mausoleums. An example being the conserved necropolis in the Pl. Vila de Madrid.

A new wall was built in the fourth century. It was attached to the exterior part of the previous wall and reinforced with watchtowers.

One of the largest examples of subterranean archaeology within the confines of museum in Europe can be found at the Museum of History. The museum preserves, underground, 4,000 square meters of ancient Bàrcino. The exhibit also allows brings the visitor closer to the ancient Iberian culture (the inhabitants of Barcelona before the arrival of the Roman arts), as well as to the foundation of Bàrcino. It offers the opportunity to get to know those who lived in the city by showing us the numerous objects found in excavations carried out at the site.

Barcelona's points of interest in terms of the Roman art era are:
EThe Roman art Temple (end of 1st century BC) at 10, Paradís street
The Roman art vía sepulcral (tomb) (1st to 3rd centuries BC) in the Vila de Madrid sq.
The walls and gateway to the Roman art city of Barcino (1st century BC to 4th century AD) in the Nova sq.
The walls and gateway to the Roman art city of Barcino (1st century BC to 4th century AD) at 3, Regomir street.
The walls and the watchtowers of the Roman art city of Barcino (4th century AD) in Correu Vell street.
The wall and the watchtowers of the Roman art city of Barcino (4th century AD) in the Ramon Berenguer street.
The walls and the Roman art aqueducts (first century BC) in the Nova sq.
The Episcopal buildings (4th to 8th centuries) City's history museum in Rei sq.