Jerash & Ajloun Castle: Jordan's Roman and Islamic Layers

Jerash rarely gets the recognition Petra does, which is strange given what's actually there — a Roman provincial city with its street plan, forum, colonnaded avenues, and two theatres still largely intact, sitting an hour north of Amman. Pair it with Ajloun Castle, a 12th-century Islamic fortress in the hills nearby, and you get a single day trip that covers two completely different periods of Jordan's layered history without much driving between them.

Why Jerash Is Worth the Detour

Jerash was one of the cities of the Decapolis, a loose network of ten Greco-Roman cities across the eastern edge of the empire, and it flourished for centuries under Roman rule before a series of earthquakes and a shift in trade routes led to its slow decline. What makes it unusual today isn't any single monument but how much of the whole city survived — you're not looking at isolated ruins scattered across a field, you're walking through a street plan that still makes sense as a city.

Much of that survival comes down to what happened after Jerash was abandoned: sand and soil gradually buried large sections of it, which protected the stonework from centuries of scavenging for building material that stripped so many other ancient sites down to their foundations. Archaeologists only began serious excavation in the early 20th century, and even now a portion of the city remains unexcavated.

Jerash's Highlights

• The Oval Forum, an unusually shaped public square ringed by 56 Ionic columns, built to smooth the transition between two streets that meet at an angle
• The Cardo, the city's main colonnaded street, still paved with the original stones in places, with visible ruts worn into them by two thousand years of cart traffic
• The South and North Theatres, both still structurally sound enough to host performances, with the South Theatre in particular known for its unusually good acoustics
• The Temple of Artemis, Jerash's patron goddess, with towering columns that once supported a roof and now stand open to the sky
• Hadrian's Arch, built to commemorate the Roman emperor's visit in 129 AD, marking what was once the city's southern entrance

The Jerash Festival, held most summers, brings performances to the South Theatre and other parts of the site, using the ancient spaces exactly as they were designed to be used — worth checking the dates if your visit lines up with it.

Ajloun Castle

Ajloun Castle was built in 1184 by Izz al-Din Usama, a commander under Saladin, specifically to watch these forested hills for Crusader troop movements and to protect the trade and communication routes between Damascus and Cairo. It's a working example of Islamic military architecture from the period — thick walls, arrow slits, a dry moat, and a hilltop position that still gives a clear read on why it was placed exactly there.

The castle changed hands several times over the following centuries, was partly destroyed by a Mongol raid in the 13th century, and was later restored by the Mamluks, whose additions are still visible in parts of the structure today. Climbing to the upper levels gives sweeping views across the wooded hills of northern Jordan — a genuinely different landscape from the desert most visitors associate with the rest of the country.

Inside, a small museum displays artifacts recovered from the castle and the surrounding region, giving useful context on the site's Ayyubid and Mamluk history before you head back down through the same corridors and stairwells the garrison would have used eight centuries ago.

The Hippodrome and the Roman Army Show

Near Jerash's south entrance sits a restored hippodrome, once used for chariot races and capable of seating around 15,000 spectators in its day. Several days a week, a reenactment show stages gladiator fights and a chariot race with performers in Roman military dress, using the space roughly as it was intended — it's a bit theatrical compared to the rest of the site's quiet, contemplative ruins, but it's a genuinely fun addition if the timing lines up with your visit, and it gives a more visceral sense of scale than reading a placard ever could.

Getting There from Amman

Both Jerash and Ajloun sit north of Amman, connected by a road that winds through increasingly green, hilly terrain the further north you go — a noticeable shift from the browner landscape around the capital. The drive to Jerash from Amman takes roughly an hour, and Ajloun is a further 30 to 40 minutes beyond that, through forested hills that are a pleasant change of scenery in their own right, particularly in spring when the countryside is at its greenest.

Combining the Two on One Day

Most day trips from Amman combine both sites in a single itinerary — Jerash in the morning, when the light is better for photos and the site is at its coolest, and Ajloun after lunch, with the short drive between them taking well under an hour through green, hilly countryside that's worth a look on its own. Being back in Amman by evening is realistic without feeling rushed at either stop.

What to Expect Underfoot

Jerash involves a genuine amount of walking across original Roman paving, which is uneven, worn smooth in places, and occasionally slick if it's been raining — proper shoes matter more here than the flat, groomed paths at some other sites might suggest. Ajloun's stone stairways inside the castle are narrow and steep in places, another spot where sturdy footwear pays off over sandals. Bring water for both stops; Jerash in particular offers little shade across its open plazas and colonnaded streets.

Jerash and Ajloun make an easy case for themselves once you're actually standing in either one — a Roman city that still reads as a city, and a Crusader-era castle that still commands its hilltop. Together they're one of the better single days you can build into a Jordan itinerary, and one of the least crowded.