The most expensive cheese in the world comes from a donkey farm in Zasavica, Serbia. About 100 donkeys live on the farm, and they're milked three times daily. While in normal cheesemaking a pound of cheese requires about a gallon of milk to make, it takes more than three gallons of donkey milk to make a pound of this donkey cheese. And that pound of donkey cheese costs about $500.
“Aha,” you say, “luckily I am a rich idiot with a powerful hunger for donkey cheese!” Well, buster, if you want any you'll have to go through Novak Djokovic, ranked No. 1 in men's tennis singles by the Association of Tennis Professionals. The best men's tennis player in the world has bought up all of the donkey cheese. Every single last bit of it.