Discusses cultural-historical heritage protection doctrine, and the frequent reconstructions of old buildings, in spite of the Venice Charter exclusion policy. Facsimiles are created which in the majority of cases are not real since they are not faithful copies of that which once existed. The second aspect of intervention, which is also frequent, imposing great danger upon the heritage, is the design of new structures in the style of the existing architectural framework, which is not limited only to devastated regions within the historical core, but sometimes old structures are demolished in order that new ones should be built in their place. New structures in historic districts should reflect our contemporary age both in the technical and in the aesthetic sense since only in this way we shall be able to completely emphasize the heritage values and make a contribution to the development of architecture in general. Recommends achieving a correct integration of the new with the old.