Itinerario da Piazza del Popolo a Piazza Navona

Although it's the quickest route to Piazza Navona, it's worth stopping along the way.
Along Via di Ripetta you'll find the Ara Pacis Augustae, a solemn symbol of Augustan peace, now housed in a display case by Richard Meier.
Continuing towards the square, a visit to the Basilica of Sant'Agostino, a treasure trove of timeless masterpieces by Caravaggio and Raphael, is a must.