Iberian village of Olerdola, at Barcelone.
Placed on the top of a mountain, this set has been used from 4th century b.C. up to the Middle Ages. There are remainings from almost every age: tools, constructive rests... They were later reused.
At the Iron Age the first defensive wall was built. It would be restored by Romans. Only one of the village sides was constructed, because of the very good geostrategical situation of the land. Wall was made of pure rock roughly carved. The rest of the perimeter was defended by itself since topography let it so.
From the beginning of the 4th century b.C. it was governed by an Iberian people: the cesetans. This village -oppidum-, was great enough and was set on the rocky part of the mountain, using it like a natural basement for its construction. Houses had a rectangular plan and divided in one or two rooms, one of them with a fireplace on the floor. Often, several rooms were excavated on the rock. Walls were made of stone mortat of mud.
After Roman arrival, this people accepted presence of castra, as other peoples did before. They assimilated Roman culture, since Romans offered the population the goods they enjoyed. Common life was peaceful during these years, leaving civil works as the cistern for supply of water, the wall and the watchtower.
Olerdola was no more an important strategic point until 10th century. Then, a castle, religious buildings, a cemetery and areas of neighbourhood were constructed. When counter-conquest against arabs went on, population protected inside its walls came down to the plains, looking for an easier life. Then village disappeared.