Great Colonnade at Apamea overhauled drainage system. Justinian's changes included erecting a monumental "tetrastylon" made up of four high columns with a meter-high capitals. The city, was however, later sacked by the Sasanians under Adarmahan. Great Colonnade at Apamea The Great Colonnade at Apamea was the main colonnaded avenue of the ancient city of Apamea in the Orontes River valley in northwestern Syria. It was built in the second century CE after Apamea's devastation in the 115 earthquake. The avenue, which runs for nearly , made up the city's north-south axis, or the "cardo maximus". The monumental colonnade is among the longest and most
Great Colonnade at Palmyra Great Colonnade at Palmyra The Great Colonnade at Palmyra was the main colonnaded avenue in the ancient city of Palmyra in the Syrian Desert. The colonnade was built in several stages during the second and third century CE and stretched for more than a kilometer (approximately .75 miles). It linked the Temple of Bel, in the southeastern end of the city, to the West Gate and the Funerary Temple in the northwestern part. The colonnade was damaged during the Syrian Civil War, especially when Palmyra was occupied by the Islamic State of Iraq and the Levant from May 2015 to