Ali Qapu imperial palace is regarded as the best example of Safavid architecture and a symbol of Iran's Islamic heritage. It is located on the western side of the Naqsh-e Jahan Square 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. UNESCO inscribed the Palace and the Square as a World Heritage site due to its cultural and historical importance.
In the sixth floor, Music Hall, deep circular niches are found in the walls and ceiling, having not only aesthetic value but also acoustic. (Wikipedia)

Ali Qapu imperial palace is regarded as the best example of Safavid architecture and a symbol of Iran's Islamic heritage. It is located on the western side of the Naqsh-e Jahan Square 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. UNESCO inscribed the Palace and the Square as a World Heritage site due to its cultural and historical importance.
In the sixth floor, Music Hall, deep circular niches are found in the walls and ceiling, having not only aesthetic value but also acoustic. (Wikipedia)