Attendorn, Sauerland, Germany; Castle Schnellenberg in heavy rain – The castle was built around 1200, at the time when the place Attendorn by the award of the Law of Soest town rights were granted. The construction of the castle and the acquisition of Waldenburg, served to protect the interests of Cologne cure and protect the Heidenstraße, a nearly 500-km-long army and trade route that led from Leipzig via Kassel to Cologne.