There may be no artist better suited to the night than Caravaggio — the tormented Baroque painter famous for his dramatic, almost theatrically-lit paintings.

And on Saturday night, Rome is offering up its Caravaggios to the public. From 7pm on Saturday, July 17 until 9am on Sunday morning (yes, all night), four different sites will be open and free: the Borghese Museum (right now, ordinarily a €10.50 entrance), with its "Boy with a Basket of Fruit" (above), "Sick Bacchus," and "Madonna of the Snakes," among other pieces; the Church of San Luigi in Francese, home to Caravaggio's first major commission, the three frescoes of St. Matthew; the Basilica of Saint Augustine, with its Madonna of Loreto; and the Basilica of Santa Maria del Popolo, with its Crucifixion of St. Peter and Conversion of St. Paul (open only until 1am).

Just be prepared for a queue at the Borghese, where Romans are most likely to flock… although the later you go (or the earlier Sunday morning), the more likely you are to to have the museum to yourself.