Capital city of Monaco, the smallest sovereign principality in Europe. Its current area is 395 acres (0.61 square miles) but it was somewhat larger at the specified time of the opera, 1750. Burgess (60) notes that Monte Carlo, being but a division of Monaco, does not merit having a prince. Tush. Sullivan apparently looked upon Monte Carlo as his favorite vacation spot (324). Although he developed a reputation as a heavy loser in gambling, he denied the rumor (183).