The Thirteen Towers of the Horned One

Stretching across Asia, from North Manchuria, through Tibet, west through Persia, and ending in the Kurdistan, was a chain of seven towers on isolated mountaintops; and in each one of these towers sat continuously a priest of Satan, who by "broadcasting" occult vibrations controlled the destinies of the world for evil. 

William B. Seabrook, Adventures in Arabia

In 1927, gonzo journalist William Seabrook became the first to write about the "Seven Towers of Satan," by which the priesthood of the Yazidis, the People of the Peacock Angel, secretly controlled the world.

So that explains it.

Seabrook's towers were fiction, but hey: a good idea is a good idea.

The Thirteen Towers of the Horned One.

Clearly it couldn't be the same priest (or priestess) sitting 24/7 in each tower, but that's no problem: we could take it in shifts.

Here in Paganistan, we've got a great tower (with signature witch's hat roof) that stands on the highest point in Hennepin County.

So we've already got one tower.

All we need now is twelve more.