Great Colonnade at Apamea columns display two main designs: a plain one, and the distinctive spiral-flutes. Archaeologist Jean Lassus argues that the former dates back to the Trajanic period, while the latter to that of Antoninus Pius. The colonnade's porticoes were paved with extensive mosaics along the full stretch of the colonnade. Under the Byzantine Emperor, Justinian I, several parts of the colonnade were restored. The street was narrowed to by adding a sidewalk on either side. Several stretches of the street had their Roman pavement replaced with a new pavement made of squared blocks of limestone. The new pavement also covered a completely
Royal Automobile Club of Australia building casebook example of the features and aesthetic aspirations of this architectural style, as transposed from the United States to Australian - and here particularly Sydney - conditions. This aesthetic/architectural significance is enhanced by the relatively high degree of intactness of the building's major features and fabric, particularly on the main exterior elevations, including the face-brick and stonework, steel windows and doors, and the fine stone and wrought iron colonnade. Internally, key spaces such as the main entry hall with its marble floor and column cladding, the dining room with its coffered ceiling and lead-light glazed dome and major function and