Alternatively known as the Palazzo Barberini or the National Gallery of Antique Art ( Galleria Nazionale d 'Arte Antica ) ( on the Via delle Quattro Fontane ) , another architectural battleground for arch-rivals Borromini and Bernini , is worth a visit as much for its splendid Baroque decor as for its collection of 13th 17th-century paintings .
The Palazzo Barberini 's decor cannot be described as Baroque .