Blankenheim, Germany - April 7, 2013: In the heart of the Eifel and the German / Belgian nature park, the municipality Blankenheim is. Since 1983, the state-recognized resort Blankenheim is the center of an area municipality with 14,900 hectares total. The Blankenheim Castle is a castle above the town of Blankenheim (Ahr) in the Eifel. It was built as a hill fort in the year 1115 of Gerhard I, and was the ancestral home of the family of Blankenheim. The Lords of Blankenheim were collected in 1380 in the rank of count. The castle is used are the re-opening in 1996 as a youth hostel Blankenheim Castle.