Purpose-built Abbasid imperial capital of palaces, cantonments and great mosques.
Only surviving early Islamic capital retaining its original plan, architecture and arts.
Samarra was founded around 836 CE by the Abbasid caliph al-Mu'tasim as a new imperial capital on the east bank of the Tigris, conceived partly to house his Turkish military forces away from Baghdad. It served as the seat of the caliphate until 892 and grew into an immense planned city stretching for tens of kilometres, laid out around broad axial avenues, vast palace complexes, garrison cantonments, racecourses and gardens. Its monuments include the Great Mosque of al-Mutawakkil with its distinctive spiral minaret, the Malwiya, and the later Abu Dulaf mosque, set within an extensive grid of residential and administrative quarters.
Largely abandoned after the caliphs returned to Baghdad, Samarra is the only early Islamic imperial capital to preserve its original plan, architecture and decorative arts almost intact, with much of the site still unexcavated. As a vast, purpose-built royal city it documents Abbasid ideas of axial planning, monumental palace architecture and water management at imperial scale, and is inscribed as a UNESCO World Heritage site.