The Principality of Monacois a sovereign city-state located on the French Riviera, just east of Nice. It is one of the richest countries in the world and the most densly populated. Famous for gambling (Monte Carlo), auto racing, (Formula 1 and Monaco Grand Prix), glamorous royalty (Prince Ranier and Princess Grace) and yachts. It is also a tax haven for the rich. We made a day trip to Monaco and walked the streets of this hilly, beautiful city by the sea, taking in some of the sights including a tour of the Royal Palace and a visit to the Prince’s Car Collection.