Ahmed Ibn Tulun Mosque

The Mosque of Ahmad Ibn Tulun is one of the most famous archaeological mosques in Cairo. It was built by order of Ahmad Ibn Tulun, founder of the Tulunid state, in 263 AH / 877 AD in his new capital Al-Qata'i — becoming the third congregational mosque built in an Islamic capital of Egypt after the Mosque of Amr Ibn Al-As in Fustat and the Mosque of Al-Askar.

Although the Mosque of Amr Ibn Al-As still exists, the Tulunid mosque is considered the oldest surviving mosque in Egypt in its original condition, by comparison with Amr Ibn Al-As which has undergone successive alterations that changed its features.