"Travel to three of the ancient world's most treasured destinations, where wealth and power converged to create important commercial hubs. Zanzibar, where the Omani Sultan presided over a vast trading network of ivory, spices and slaves, to Dhofar, Oman, where frankincense was king, and then on to Ghadames, Libya, one of the oldest pre-Saharan cities, which became the trans-Saharan caravan junction for all of North Africa" -- Container.

Features : Discussion questions and activities. Originally produced for the television series: Treasures of the world, heritage of mankind, between 2000 and 2002. Based on an idea by Gustav-Adolf Bähr.