Mosque of Ahmad Ibn Ţūlūn

The Mosque of Ibn Tulun is located in Cairo, Egypt. It is one of the oldest mosques in Egypt as well as the whole of Africa surviving in its full original form, and is the largest mosque in Cairo in terms of land area. It is built around an open square courtyard which allows natural light to travel through. Ibn Tulun Mosque features ancient architecture styles of Egypt, its decorations being created from carved stucco and wood. This mosque is a popular tourist attraction.

Source: Wikipedia