Getty Images / Cate Gillon A work by Mark Rothko on display at Sotheby's.Last week, a Picasso painting called "The Women of Algiers (Version 0)" fetched $179.4 million minutes before a bronze statue by Alberto Giacometti called "Man Pointing" sold for $141.3 million. 
The buyers were anonymous, though a recent New York Times article narrowed the potential Picasso buyers down to 50 suspects - some of whom made their fortunes in tech.
Tech titans have a taste for expensive art. We've rounded up some of the biggest purchases here.