Oceanographic Museum of Monaco

State rooms with 600 square meters of Renaissance frescoes and a throne room, plus a booklet for kids 6 to 11.

Most rooms have terraces over the rose garden or the sea, and the park next door has a playground, a merry-go-round and a pond with turtles and ducks.

Cacti and succulents, some over a century old, on a cliff above the sea, plus a guided trip down about 300 steps into a cave of stalactites.

About a hundred of the Prince's own cars, among them Monte Carlo Rally cars and Formula 1 cars that raced the Grand Prix.

A small hillside zoo with rescued animals, best when you want animals without committing to a huge zoo day.

Some rooms overlook the Grand Prix hairpin, and a kids' club in July and August runs baking and creative workshops.