Built in the 1880s during the late Qajar period, the Nasir al-Mulk Mosque — universally known as the Pink Mosque for the rose-pink tiles that cover much of its façade — is one of the most photographed buildings in Iran. The exterior tilework is exquisite, but the real reason to come is the western winter prayer hall, where stained-glass windows fill the room with coloured light at sunrise.
The mosque is still in active use and remains relatively small. There is a quieter time after the morning photo rush passes: the courtyard with its long reflecting pool and rows of muqarnas-decorated arches is worth lingering in, especially when the call to prayer echoes off the tiles. Modest dress and headscarves for women are required; chadors are provided at the entrance.