Marrakesh

Marrakesh was one of the major cities of Earth in the 21st century. In this regard, it was among the cities where forces of flying Cybermen emerged led by a female incarnation of, "Missy". Taking to the skies, they created a cloud of cyber-pollen above the city. These pollen clouds then rained upon the graves, recruiting the dead of the Earth into a new Cyberman army. When control of the Cyberman army went to the hands of the recently-converted Danny Pink, he ordered all Cybermen to return to the skies and self-destruct, taking the pollen clouds with them in their combined explosions. (TV: Death in Heaven)