I've gotta' agree with Gregory - - - it looks like a lighthouse lantern. . .

Just a point of order - Ghengis (or Chinggis) Khan died on campaign somewhere in the region of China, and the Mongol Empire had only stretched as far as about the Black Sea and the western "Middle East". Tim Cope actually went well beyond that, heading as far west as Batu Khan's incursions over a decade after Ghengis died, which makes the trek even more impressive.