Ali Ghapou (Ali Qapu) Isfahan, Iran
Is a grand 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. It is forty-eight meters high and there are six floors, each accessible by a difficult spiral staircase. In the sixth floor, Music Hall, deep circular niches are found in the walls, having not only aesthetic value, but also acoustic. The building, another wonderful Safavid edifice, was built by decree of Shah Abbas I in the early seventeenth century.