مدينة السلام | |
 Baghdad under the early Abbasid caliphs, with the Round City | |
  Shown within Iraq | |
| Alternative name | The City of Peace / Al-Mansur |
|---|---|
| Location | Baghdad, Iraq |
| Coordinates | 33°20′51″N 44°20′06″E / 33.34750°N 44.33500°E |
| Type | Settlement |
The Round City of Baghdad is the original core of Baghdad, built by the Abbasid Caliph al-Mansur in 762–766 CE as the official residence of the Abbasid court. Its official name in Abbasid times was City of Peace (Arabic: مدينة السلام, romanized: Madīnat as-Salām). The famous library known as the House of Wisdom was located within its grounds.