To see Caravaggio's brushwork up close, head to the Borghese Gallery.

WSJ: The Calling of St. Matthew | A Dramatic Enlightenment | Masterpiece by Willard Spiegelman

Nonetheless, the National Gallery managed to persuade the usually intractable Galleria Borghese in Rome to part with two trademark works in return for lending them its Raphaels for a future show.

ECONOMIST: Caravaggio