Sankoré Mosque

Mosque in Timbuktu
Image by David Else / Getty Images

Timbuktu's three great mosques - all inaccessible to non-Muslims - are nothing much to look at, but serve as reminders of its great past. The youngest of the three, Sankoré Mosque was raised at the turn of the 16th century. It also functioned as a university and an important centre of learning.