Great Colonnade at Apamea as part of the intersection. The colonnade was further intersected by side streets at regular intervals of . The colonnade passed through the center of the city and several important buildings were clustered around it, including the baths, the agora, the Temple of Tyche, the nymphaeum, the rotunda, the atrium church and the basilica. The street within the colonnade was wide and paved with large polygonal limestone blocks. On either side of the street a wide colonnade ran its full length. The columns were high and in diameter. They stood on square bases of on a side and high. The
White Pine Series of Architectural Monographs photographs and measured drawings complemented the "Comparative Details" feature which published construction details for contemporary projects. The Monograph series was ended abruptly in June 1940. Many of its contributors became involved in the Historic American Buildings Survey. Eagerly collected by architects and historians, the monographs have been re-issued in bound editions several times. In 1987 the National Historical Society of Harrisburg, Pennsylvania began publishing a series of hardbound books, the Architectural Treasures of Early America, drawn entirely from the "White Pine Monographs". They reorganized the individual editions into geographic regions and re-set all the type in order to produce a