An oasis city built in stone
Palmyra stands in an oasis in the Syrian desert, roughly midway between the Mediterranean coast and the Euphrates. Its water came from a spring, and its wealth came from the caravan trade that crossed the desert. Most of the monumental buildings visible today date from the first to the third centuries CE, when Palmyra was part of the Roman world but still ruled its own affairs through a council and local leading families. The Emperor Hadrian is reported to have visited around 129 CE, after which the city was given a new honorific name linked to him.
The result was an urban landscape that looks Roman in its vocabulary of columns, arches and theatres, yet uses them in ways that suited local needs. Palmyra is a good example of how Roman architecture was adapted, not simply imported.
The Temple of Bel
The Temple of Bel was the city’s most important sanctuary. Its main phase was dedicated in 32 CE, according to the dating usually given, to a god known as Bel, who was worshipped together with local deities of the sun and moon. The temple stood within a very large rectangular court, roughly 200 metres on each side, enclosed by a colonnade. A monumental entrance at one end led into this space, and a ramp allowed animals for sacrifice to be brought in.
The sanctuary combines two traditions. On the outside it has the familiar elements of a Greek or Roman temple, including a ring of tall columns with Corinthian capitals. The plan of the inner building, however, owes more to the Near East. The entrance is on the long side rather than at the end, the room for the god, the cella, has niches at each end, and the roof was flat and could be reached by stairs. These features point to older Syrian and Mesopotamian sacred buildings. Compared with the ordered axial plans of classical temples, or with Egyptian temple architecture, it is a distinct hybrid.
In later centuries the temple was used as a church and then as a mosque, and a village grew up inside the court. In 2015 the main building was destroyed in explosions. The surviving evidence includes earlier photographs and survey drawings, which have been important for study and proposals for restoration.
The Great Colonnade
The backbone of Roman Palmyra was a long, colonnaded street running roughly east to west, with parts about 1.1 kilometres in length. It was built in stages from the second century CE. Rows of columns lined both sides, and shops and other buildings stood behind them. A distinctive feature is the set of brackets, or consoles, projecting from the columns at about two-thirds of their height. These held statues of honoured citizens, merchants and caravan leaders, whose names and services were recorded in inscriptions, often in both Greek and Palmyrene Aramaic.
That use of the street as a gallery of local benefactors is also a local adaptation. Many Roman cities had colonnaded streets, but Palmyra’s version served the city’s traders as well as its rulers. The street joined the Temple of Bel area to the western end of the city and connected other public spaces, including the agora, the theatre and the baths.
The Monumental Arch
The Monumental Arch, often dated to the late second or early third century CE and linked in some studies to the emperor Septimius Severus, stood where the colonnade changed direction. The street segments on either side were not aligned, and the arch is built at an angle of roughly thirty degrees to hide that shift. It had a central opening flanked by smaller ones, with decorated stone surfaces. The solution is practical and visual at once: visitors approaching from the east would see a grand gateway rather than a bend.
The arch was among the monuments badly damaged in 2015. Fragments remained, and some elements were documented in detail beforehand.
Other buildings and the mix of styles
Other monuments show the same blending. The Temple of Baalshamin, dedicated in 131 CE according to its inscription, had a classical porch and a traditional Near Eastern interior, and was built with the support of a local benefactor. The theatre followed the standard semicircular form known across the empire from Greek and Roman theater architecture, and the Tetrapylon, a four-sided monument at a street crossing, marked a major junction. A later fortified camp attributed to the period of Diocletian shows the city’s role in the late Roman frontier system, where Roman legions and local units guarded the desert approaches.
Building materials were mostly local limestone. The decorative language of columns, capitals and carved friezes is familiar from other eastern cities, such as the grand facade of the Library of Celsus at Ephesus, but at Palmyra it was executed by local stoneworkers working to local tastes.
What the buildings tell us
Palmyra’s architecture shows a society that took part in the Roman world without giving up its own identity. Its merchants paid for monuments in a Roman language of columns and arches, but placed them in a plan that expressed the city’s own religious and civic life. This is why the site has been so valued, and why its damage in recent years is felt so strongly. The story of Queen Zenobia, who ruled the city in the 260s and 270s, belongs to a later phase of its history, and it ended the period of the great building campaigns.