The Propylaia AthensMuch of the superstructure of the central building of the Propylaia was restored between 1909 and 1917.
Soon afterwards, problems caused by oxidation were observed.
The breakage of the marble demanded a new project of conservation and restoration.
The project provided for the dismantling of restored parts of the building’s ceilings.
The combined study of the architectural members that were dismantled together with scattered fragments yielded new identifications, which increased the number of architectural members to be incorporated in the monument.
In 2002, implementation of the new proposal for the restoration of the Propylaia ceilings began.
The suggested solution makes the most of current research and expands the restoration in the area above the central passageway.