One of my top recommendations for people visiting the French Riviera is to technically leave the country for a day – by hopping over the border to the Principality of Monaco. This tiny city-state is surrounded by France in the same way that Italy surrounds Vatican City, occupying a prime piece of Mediterranean coastline.But even besides the stunning coastline and mountain views, everything about Monaco is just beautiful. It’s a playground for the very rich and famous, and you’ll see more luxury cars in a day than you’ve seen in your entire life. Buildings, landscaping, streets, and decorations are carefully manicured to exude perfection.