26Interchange
At $300 million, "Interchange", a painting by abstract expressionist painter Willem de Kooning, is the second most expensive artwork ever sold (as of 2017).
27. A painting named No. 6 (Violet, Green, and Red) consisting of 3 smudged blocks of colors was sold for €140 million in 2014.
28. The iconic "Dogs Playing Poker" isn't a single painting; rather, it's a series of 18 different paintings, 16 of which were commissioned by Brown & Bigelow to advertise cigars. The eleven which feature dogs sitting around a card table are all commonly used in home decoration.
29. Pablo Picasso's 1932 painting "La Lecture" depicts Picasso's mistress asleep with a book on her lap. The painting led to the breakup of Picasso's marriage after his wife saw it at an exhibition and realized that the facial features (though highly stylized) were not her own.
30. Leonardo da Vinci's painting "Madonna of the Yarnwinder" was stolen from Drumlanrig Castle by two thieves posing as tourists who claimed to be undercover police. It was found 4 years later in a lawyer’s office in Glasgow.