The Grand Prix is a prestigious international motor racing event that takes place in various locations around the world. Two of the most famous sites for the Grand Prix are Le Mans and Monaco, both of which have six letters in their names. Le Mans is located in France and is known for its 24-hour endurance race, while Monaco is located in the Mediterranean Sea and is known for its tight street circuit. Both of these sites have been hosting the Grand Prix for many years and are considered to be some of the most iconic locations for the event.