Burg Bärenfels, Medieval castle ruin in Duggingen, Switzerland.
Burg Bärenfels is a medieval castle built on a rocky ridge in Duggingen, spreading across multiple levels. The fortress integrates natural rock formations and is divided into three distinct sections.
The castle was built around 1200 by the Lords of Aesch and changed owners several times afterward. The 1356 Basel earthquake caused severe damage from which the site never fully recovered.
The site shows medieval building methods that are still visible today in the chambers carved into rock. Visitors can see traces of this craftsmanship in the walls and the holes left for wooden beams.
The ruins are located at Bachstrasse 31 and remain accessible for visitors to examine the remaining walls. Multi-story cellars carved into rock crevices can be explored and offer insight into the construction methods.
The castle employs a remarkable construction that incorporates natural rock crevices directly into its defensive system. This integration of natural geology into the architecture makes the fortress an unusual example of medieval building.
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