Preserved Building Neon Omonoia Square Maintenance & Restoration process of marble parts Maintenance preserved_building_neon_omonoia_square_001 preserved_building_neon_omonoia_square_002 preserved_building_neon_omonoia_square_003 preserved_building_neon_omonoia_square_004 preserved_building_neon_omonoia_square_005 preserved_building_neon_omonoia_square_006 preserved_building_neon_omonoia_square_007 preserved_building_neon_omonoia_square_008 preserved_building_neon_omonoia_square_009 preserved_building_neon_omonoia_square_010 preserved_building_neon_omonoia_square_011 preserved_building_neon_omonoia_square_012 preserved_building_neon_omonoia_square_013 preserved_building_neon_omonoia_square_014 preserved_building_neon_omonoia_square_015 preserved_building_neon_omonoia_square016 preserved_building_neon_omonoia_square_017 preserved_building_neon_omonoia_square_018 preserved_building_neon_omonoia_square_019 preserved_building_neon_omonoia_square_020 preserved_building_neon_omonoia_square_021 preserved_building_neon_omonoia_square_022 Maintenance