The frankincense trees of Wadi Dawkah and the remains of the caravan oasis of Shisr/Wubar and the affiliated ports of Khor Rori and Al-Baleed vividly illustrate the trade in frankincense that flourished in this region for many centuries, as one of the most important trading activities of the ancient and medieval world.

Źródło: World Heritage Convention
http://whc.unesco.org/en/list/1010