Once a center of Islamic learning, historic Mali city mourns lack of visitors

DJENNE, Mali — Kola Bah used to earn a living as a tour guide in Mali's historic city of Djenné, once a center of Islamic learning known for the sprawling mud-brick mosque that has been on the UNESCO World Heritage in Danger list since 2016. The Grand Mosque of Djenné — the world's largest mud-brick building — used to draw tens of thousands of tourists to central Mali every year. Now it's threatened by conflict between jihadi rebels, government forces and other groups. Bah says his income was enough to support his family...