Great Colonnade at Palmyra The western colonnade was the first section to be built. Inscriptions found on some columns confirm that works started before 158 CE. The straight avenue ran in northwest-southeast direction and stretched for , the longest of the three sectors. The main avenue's width was while the side streets were in width. The colonnade's western terminus, the West Gate, was built in the late second-century CE. The avenue also connected in a right angle to the Transverse Colonnade which stretched to the Damascus Gate in the south. The eastern sector of the Great Colonnade started at the Monumental Arch and stretched
Mill Colonnade 1871-1881. The original design called for a two level colonnade, but a lack of funds restricted it to one level. Construction proceeded very slowly and costs grew higher. The structure was initially reviled by critics and compared to a bed of carrots or a bowling alley; at the time it was finished, many believed it had blemished the center of town. The Mill Colonnade was extended in 1893 to include the Rock Spring. The structure was restored in 1982, and stone reliefs portraying historic moments in Karlovy Vary history were added to the orchestra space in 1995-1996. By 1949, the