Thurayya Palace

The Thurayya Palace (Arabic: قصر الثريا, romanized: Qaṣr al-Thurayyā, lit.

[1] It lay at the Musa Canal, adjacent to the Great Divide, where the canal split in three, some two miles east from the older Hasani Palace, and most likely outside the city wall built around East Baghdad in the 11th century.

[2] The Thurayya, Hasani, Firdus, and Taj palaces combined into a sprawling palace complex, the "Abode of the Caliphate" (Dar al-Khilafat), comprising several major and minor residences and gardens.

[3][4] The Thurayya was connected with the Hasani by an underground passage, which allowed the caliph, his harem, and his servants to move between the palaces unseen.

[5] The historian Mas'udi reports that the palace's construction cost 400,000 gold dinars.