The 15 Most Expensive "Blanks" Ever

The most expensive painting in the world (sold at auction) is of rather-disputed provenance. The most expensive sculpture ever sold was "Plan B" for its creator. And the most expensive empire may be the Roman Empire, if you'll allow us some poetic (historic?) license. Justin breaks down 15 of the most expensive "blanks" ever, from kidney stones to comic books. In case you forgot, The List Show is a trivia-tastic, fact-filled show for curious people. Subscribe here for new Mental Floss episodes every Wednesday: https://www.youtube.com/channel/UCpZ5qUqpW4hW4zdfuBxMSJA?sub_confirmation=1 Website: http://www.mentalfloss.com  Twitter: http://www.twitter.com/mental_floss  Facebook: https://facebook.com/mentalflossmagazine


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