Meet the World's Most Expensive Photograph: Part 2

"It's a $4 million question: What makes this photo so special?"

"'Does it come with several Ferraris?' offers an arts editor here. Well, that would make more sense, but no, not that we know of. "One can only assume the collector really likes stripes of green and gray," jokes SeattlePI.com. Unfortunately, though, we don't know who bought it."

"Andreas Gursky's Rhein II fetched $4,338,500 at a Christie's auction last week, breaking the record for the most expensive photograph ever sold at auction."