A Rembrandt painting that was estimated at just €15,000 two years ago at auction is now offered at Sotheby's upcoming sale with a £15 million price tag.
The French Emperor's iconic bicorne hat just sold for over €2 million, a world record for such an object.
At the highest stratosphere of the auction market, 12 paintings have each sold for over $100 million. From works by Picasso to the famous da Vinci, here are the most expensive paintings ever sold at auction.