Costanza is a well-kept secret in the world of the elegant restaurants in Rome. Popular with low-profile celebrities and powerful businessmen, the restaurant sits under the remains of the tiers of the Pompeo Theatre, which is part of a bigger complex built after 61 B.C. The cave-like ambience, with arcades, columns and ancient machinery scattered about, is what gives Costanza its allure, coupled with great regional food and wine, as well as attentive service. Start with the rich antipasto della casa, a combination of pizza bianca, mas- carpone and chicken liver spread, mozzarella di bufala and the yummy fried pumpkin flowers and then let the waiters guide you through the wide offer of beef filet, risotto and fresh seafood on display in glass refrigerators by the en- trance. Insider’s tip: ask if they have the maialino da latte, likely the softest pork meat you’ve ever had.