(The photo is Djenne, not Timbuktu, but nonetheless.) I thought this was fun. Someone's trip to Mali, in west Africa (never been there). Love the photos and narrative. The architecture is really cool. Mali has the largest mosque in the world made of mud (photo above). They've also got open sewers running through the cities. I would think we could help fix that. Mali is one of the poorest countries in the world (among the four poorest).