What do Jenne-Jeno, Alexandria, Meroë, and Thonis-Heracleion have in common? All four cities were once the jewels of ancient Africa. They were centers of wealth and sophistication, which allowed their continent to flourish. Unfortunately, as time passed, their fortunes began to wane, which led to their decline. Although their splendors have disappeared from sight, archaeology is now shedding light on their once glorious and magnificent past. 1. Thonis-Heracleion — Africa’s...