Monaco, officially the Principality of Monaco, is a sovereign city-state, country and microstate on the French Riviera in Western Europe. France borders the country on three sides while the other side borders the Mediterranean Sea. Monaco is also located close to Italy, although it has no direct border. Monaco has an area of 2.020 km² and a population of about 38,400, according to the last census of 2016. With 19,009 inhabitants per km², it is the second-smallest and most densely-populated sovereign state in the world. Monaco has a land border of 5.47 km, a coastline of 3.83 km, and a width that varies between 1,700 and 349 m. The highest point in the country is a narrow pathway named Chemin des Révoires on the slopes of Mont Agel, in the Les Révoires Ward, which is 161 metres above sea level. Monaco's most populous Quartier is Monte Carlo and the most populous Ward is Larvotto/Bas Moulins. Through land reclamation, Monaco's land mass has expanded by 20 percent; in 2005, it had an area of only 1.974 km². Monaco is known as a playground for the rich and famous, due to its tax laws.