Taq Kasra Archaeological Site

Taq Kasra, commonly called the Arch of Ctesiphon, is the surviving monumental iwan of a Sasanian imperial palace near the ancient site of Ctesiphon in modern-day Iraq and is one of the best-known examples of late antique Persian monumental brick architecture.

The structure dates to the Sasanian period when Ctesiphon served as a royal and administrative center; the vaulted hall was part of a ceremonial palace complex. Over the centuries the complex declined, and the arch survived as a monumental fragment; it has been subject to archaeological study and intermittent conservation efforts in the modern era.

Taq Kasra stands at the site of al-Mada’in, southeast of Baghdad in Baghdad Governorate, adjacent to the Tigris floodplain and the remains of the ancient city of Ctesiphon.

• Largest surviving element: The standing brick arch is the largest known single-span vault of baked brick from the Sasanian period and remains the site’s most prominent surviving element.
• Conservation note: Located beside the ruins of the ancient city of Ctesiphon (al-Mada’in), the site has been subject to conservation work and occasional damage over time due to natural decay and regional conflicts.

What to See#

• The arch (Taq Kasra): The monumental vaulted iwan - a brick-built ceremonial arch that is the surviving remnant of a Sasanian palace hall and the site’s defining structure.
• Palace ruins and complex: Surrounding palace foundations and masonry platforms marking the footprint of the wider royal complex associated with the ancient city of Ctesiphon.

Taq Kasra (Ctesiphon) lies on the outskirts of Baghdad in the Babil governorate area near Salman Pak. Access and visiting conditions vary with security and administrative arrangements; travelers should coordinate with local authorities or licensed guides and check current travel advisories.

• Access is strictly regulated; contact local authorities or tour operators for visiting the remains and for current guidelines.
• Bring a wide-angle lens for photographs - the surviving arch is best captured from a distance that shows its scale against the open plain.
• If visiting Baghdad, allow ample time for security checks and coordinate visits through a licensed local guide for safety and permissions.