If we look closer at the biographies of the professionals of the first half of the 20th century, we can see how conventional and inconsistent the simplified scheme of the history of the national architecture of the 20th century is. The traditions of classicism preserved until the middle of the 1950s by old experts, graduates of the Imperial Academy of Arts and the Institute of Civil Engineers, have been lost. Professionalism has been lost together with the traditions. The logical consequence is ruin and chaos in the city environment.