The issue of restoration or of the reconstruction of works of architectural tradition lately is being reconsidered. Due to a continuously developing historic and cultural awareness, it is being approached beyond the “traditional” way. Until recently a “reconstruction” was, almost exclusively, limited to a restoring or reconstructing intervention upon the architecture of monuments of buildings that have a significant artistic value. The major aim of this intervention was to handle effectively the critical structural deficiencies caused either by time or destructive natural phenomena (earthquakes, etc.). However, in the 1980s the need for an effective approach to the problems concerning the restoration of important works of architecture of the 20th century became quite urgent. These problems, needless to say, are much more complex and difficult to solve than they originally appear to be.