Luxembourg is a small European country with an area of 2,856 sq km. The capital and largest city is Luxembourg City. Some other major cities and towns include Vianden, Echternach, Remich, Clervaux and Ettelbruck. Luxembourg has three official languages: Luxembourgish, French and German. The country shares borders with Belgium, France and Germany. Popular activities include athletics, cycling, tennis, cricket and soccer. Luxembourg is the only grand duchy in the world and has a Grand Duke as its head of state rather than a king. It is also the second richest country in the world.