The "House of Gold" (Dar al-Dhahab) was the famous palace of the Abbasid caliph:
Q1. The "House of Gold" (Dar al-Dhahab) was the famous palace of the Abbasid caliph:
Answer: Al-Mansur in Baghdad
Explanation: Al-Mansur (r. 754–775 CE), the second Abbasid Caliph, built the famous round city of Baghdad (Madinat al-Salam) as the new imperial capital and constructed the "Dar al-Dhahab" (Golden Gate Palace) at its center.