Built Form   Paul Vidal de la Blache and others suggested that central Romania, northern Bulgaria and eastern modern day Serbia were dominated by wood as the principal traditional building material. In the present day the region we are visiting is a complex mix of materials. It is interesting to identify whether villages still have a dominant building material and whether we can attempt to classify them using this characteristic. It is certainly possible to identify villages with timber as the dominant surviving material. In many cases tiles are hung on the walls to protect the timber structures from the weather. The study aimed to identify villages which fit the following 'best-fit- descriptions: villages with timber as the dominant surviving material villages which became centres of a collective farm but contain evidence of older, traditional wooden structures. villages where stone or brick are the dominant building materials but where there is evidence that the buildings are old. villages of more recent date where buildings of traditional shape and general style are being built with breeze block. areas in which dispersed farmsteads appear to occur more commonly than clustered or semi-clustered settlements.