In the 12.Century, at the Rome there was a revolution to the patriarchs. Therefore, in this situation, France made some changes in religious to not undergo this revolution and France is affected from this situation in a positive way. At the same time, the changes about the Feudal structure create a new society class. People were against to the nobility and the church. They worked on trade so they built new structure styles such as; guild halls, tore houses, market building, shop etc. and also streets and public places were getting shape with the help of these structures.
In the old towns, we see the significant effect of the gothic structure. Although, in some parts we saw the imitation of Roman Empire, in the other parts we saw the imitation of Germanic Kingdom. At the Europe, we see the significant marks of the Roman Legacy. These cities were getting more safety for the pilgrims. Protection (protection of people) is an important idea in there and there was another important thing which was the stopping the increase of the population. At this situation, circular form of the cities became more suitable because it gives a chance to the natural growing of the city.
If we turn back to the individual structures from the broad urban canvases , we see two general observation. The first one is variation of building types, the other one is the town that is defined with the user and the client. Some situations (like the decline of the urban milieu and the rise of the Christian ethic) made some styles of buildings more general. Therefore, some buildings started to be used more such as, theatres, baths and circuses, amphitheatres, basilicas, forums, administrative buildings of all kinds, warehouses and brothels. This important change affected to the architectural thought in two ways. A divorce between form and function began to occur. At the same time, several functions could be gathered under a single roof. I mean as Kostof said, a hospital can be also a poorhouse, orphanage, almshouse etc.