Luxembourg has a number of minor rivers, such as the Eisch, the Alzette, and the Pétrusse, but the main river is the Moselle with its tributaries-the Sûre and the Our. Together, their courses serve as a natural boundary between Luxembourg and Germany. Along their banks, many of the country's medieval castles can be found.
Luxembourg is a small and wonderful country in Europe. This tiny country has proud and unique traditions and is hospitable and hearty. Here, the delicacy of France and the generosity of Germany combine in an entirely different way than one finds in Belgium.
Luxembourg is a parliamentary, democracy headed by a constitutional monarch. Under the constitution of 1868, executive power is exercised by the Grand Duke and the cabinet, which consists of several other ministers.