Panorama of Schoenenbourg area, Bas-Rhin, France, Europe

Wood piles near Schoenenbourg, Bas-Rhin, France, Europe

Entrance of Schoenenbourg Fortress, complete with painted on embrasures, Bas-Rhin department, France, Europe

Seemingly never ending main tunnel at Schoenenbourg Fortress, Bas-Rhin department, France, Europe

Blast chambers at Schoenenbourg Fortress, Bas-Rhin department, France, Europe