Fodor's Expert Review Palazzo Mattei di Giove
Graceful and opulent, the arcaded, multistory courtyard of this palazzo is a masterpiece of turn-of-the-17th-century style. Designed by Carlo Maderno, it is a veritable panoply of sculpted busts, heroic statues, sculpted reliefs, and Paleo-Christian epigrams, all collected by Marchese Asdrubale Mattei. Inside are various scholarly institutes, including the Centro Studi Americani (Center for American Studies, centrostudiamericani.org), which also contains a library of American books. Salons in the palace (not usually open to visitors) are decorated with frescoes by Cortona, Lanfranco, and Domenichino. It's publicly accessible on Monday through Saturday.