Ali Qapu Palace is an imperial palace in Isfahan, Iran. It is located on the western side of the Naqsh-e Jahan Square, opposite to Sheikh Lotfollah Mosque, and had been originally designed as a vast portal entrance to the grand palace which stretched from the Naqsh-e Jahan Square to the Chahar Baq Boulevard. The palace served as the official residence of Persian Emperors of the Safavid dynasty