Monschau, Germany - June 16, 2013: The Monschau Castle is a castle in the eponymous town Monschau in the southern cities of Aachen. It is now used as a youth hostel in the summer as a venue for concerts and operas. In the photo, the high castle wall can be seen with the part of a tower, where some tourists walk. From the castle you can look at the town of Monschau. The few Car Park are always occupied, as can be seen in the picture.