Santa Maria del Popolo keeps its two Caravaggios in a chapel to the left of the high altar, hung on the side walls facing each other rather than facing you. One shows a man thrown off a horse in a burst of light; the other an old man being levered upright on a cross by workmen. Because they sit at right angles to the visitor you always see them from a sharp angle, in the low slanting light Caravaggio painted them for.
Across the church, the Chigi Chapel was designed by Raphael in 1513 for the banker Agostino Chigi, with two pyramids for tombs and a dome of mosaic. Raphael died, the family lost its money, and the chapel sat unfinished for over a century until Bernini completed it in the 1650s and added two figures of his own. The church stands just inside the northern gate, which for centuries was the door everyone arriving from the north came through, and it gathered art over those same centuries.