Musée Océanographique
This museum, in a splendid Edwardian structure perched dramatically atop a cliff, was built under Prince Albert I to house specimens collected on amateur explorations, including those led by Jacques Cousteau from 1957 to 1988. The main-floor Whale Room has skeletons and taxidermy of enormous sea creatures, as well as early submarines, diving gear dating from the Middle Ages, and a few interactive science displays. The main draw, however, is the aquarium, a blockbuster complex of backlighted tanks containing more than 600 species of marine life. Be sure to try one of the two escape games—the 30-minute Discovery Escape or the 60-minute Escape Experience—that you can play in teams. Round off your visit with a meal in the museum's La Terrasse restaurant, set at 85 meters above the sea.
