Buzkashi
This is one of my favorite photos of all time.  It was taken by a close friend of mine, Anthony Willoughby, on our expedition to Mustagh Ata, in a small town called Tashkurgan, high up on the Pamir Plateau in western China just near the Wakhan Corridor of Afghanistan.  "Pamir" means "Roof of the World" and there they play a Central Asian version of Polo called "Buzkashi," with a sheep carcass.

 
                        