You have to wonder about people who steal valuable artworks. How hard is it to sell the goods when they are so easy to identify? And if you buy stolen artwork, what good is it if you can’t show it off? Still, artworks are a tempting target for thieves. In this week’s mental_floss video, guest host Akilah (previously at Neatorama) tells us about 26 of the biggest, most audacious art heists ever. I guess John Green is busy signing autographs and posing for selfies with teenagers this week.