In den Felsmassiven der Alpengipfel gibt es kleine Höhlen, die während des Ersten Weltkriegs von Deutschen, Österreichern und Russen in der Arpad-Linie benutzt wurden - Stockfoto & -bild

In rock massifs of alpine peaks there are small caves that were used by Germans, Austrians and Russians in the line of Arpad during the First World War

Cave stalactites, stalagmites, and other formations at Luray Caverns, Virginia

In rock massifs of alpine peaks there are small caves that were used by Germans, Austrians and Russians in the line of Arpad during the First World War

Enchanting grottoes in the cave

In rock massifs of alpine peaks there are small caves that were used by Germans, Austrians and Russians in the line of Arpad during the First World War

Tent on stilts between the huge stones Bubnyshche on the rocks Dovbush. Climbers originally built bivouac camp to spend the night in the training on extreme rock climbing competition

In rock massifs of alpine peaks there are small caves that were used by Germans, Austrians and Russians in the line of Arpad during the First World War

In rock massifs of alpine peaks there are small caves that were used by Germans, Austrians and Russians in the line of Arpad during the First World War

Old mine, littered with a collapse. Earlier, in the depths of the alpine mountain, gold or silver was probably mined, but it was very dangerous and the miners left

Old mine, littered with a collapse. Earlier, in the depths of the alpine mountain, gold or silver was probably mined, but it was very dangerous and the miners left

In rock massifs of alpine peaks there are small caves that were used by Germans, Austrians and Russians in the line of Arpad during the First World War