Fortifications and ramparts to visit Jérash

As you enter the city, just past the southern gate, you can see massive walls on the right, probably parts of a wall built in the early 4th century by the Emperor Diocletian to extend the original rampart. The wall, which surrounded part of the city, was 4.5 km long, but had openings in several places, notably in the extension of the Decumanus or opposite the propylaeum of the Temple of Artemis. The present ruins date mostly from the Byzantine period in the 6th century.