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.
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.
Christmas in Luxembourg is celebrated with great pomp and grandeur. In fact, the preparation for the celebration of Christmas at Luxembourg starts much before the actual day.