The serious misunderstanding that the restoration of traditional workshops could contribute to the preservation of traditional techniques has resulted to a series of restored and renovated ateliers, however closed and inactive if not definitely abandoned, as well as to a big disillusionment. Concurrently, it has become obvious that traditional arts as a production method and therefore as a means of living have died. The preservation of traditional technology can be much more effectively realized through its recording, documenting and videotaping and also through the publishing of relevant scientific articles. Nevertheless, the creation of thematic technological museums, although it presupposes a high cost of construction, is the most appropriate and effective way for transmitting to the museum visitor traditional technology and its course. These museums fall in two categories: a. The museums of themselves, that is workshops in which the entity of apparatuses is preserved. b. The thematic technical museums housed in neutral building-shells. Both, however, must be primarily based on museological entities, resulting from the elaboration of complete research projects that have been realized through modern educational methods. The operation cost of these museums is a more serious problem than their construction, since the task to staff, maintain and renovate them is both expensive and difficult. The Piraeus Bank Group Cultural Foundation has elaborated a model for the operation and management of an ensemble of eight Thematic Thematic Technological Museums in Greece.