Heidenstadt
Oppidum · Ernolsheim-lès-Saverne
Fortress
château du Warthenberg
The Warthenberg Castle is a former castle abandoned before 1175 whose remains stand on the town of Ernolsheim-lès-Saverne in the department of Bas-Rhin and the Alsace region. The castle is listed as a historical monument by order of 16 December 1994.