Things to See in Monaco

Stuck dramatically to the edge of a cliff since 1910, the world-renowned Musée Océanographique - a Prince Albert I (1848-1922) creation - is a stunner. Its centrepiece is the 7.5m-long coral reef, with vivid tropical fish on one side and deep-sea predators on the other. Ninety smaller tanks contain a dazzling 450 Mediterranean and tropical species, sustained by 250,000L of freshly pumped sea water per day.

Who would've thought cacti could be so much fun? With 7000 varieties of cacti and succulents, the Jardin Exotique is paradise for prickle-lovers. If 7000 cacti is about 6998 too many, the garden is still worth a visit for its spectacular views. Admission includes entry to the Musée d'Anthropologie Préhistorique and a half-hour tour of the Observatory Caves.

Monaco's royal palace has been around since the 13th century. Every Grimaldi since has found it necessary to leave their mark on the place, and as a result this is not one of Europe's most elegant castles. It is worth taking a look inside though - 15 rooms, including the Throne Room, are open to the public.