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
Architectural style of harmony gave way to freer and more imaginative rhythms. The best known architect associated with the Mannerist style was Michelangelo (1475–1564), who is credited with inventing the giant order, a large pilaster that stretches from the bottom to the top of a façade. He used this in his design for the Campidoglio in Rome. Prior to the 20th century, the term "Mannerism" had negative connotations, but it is now used to describe the historical period in more general non-judgmental terms. Architectural style An architectural style is characterized by the features that make a building or other structure notable or