Wood ant (Formica sp.) nest in coniferous forest, Rakov Skocjan valley, near Cerknica, Slovenia, Europe

The village of Skocjan, sitting above the famous caves of Skocjanske jame, UNESCO World Heritage Site, Goriska, Slovenia, Europe

Velika Dolina (Big Valley), a town above the Skocjan Caves, in the Karst Region (Kras Region) of Slovenia, Europe

Velika Dolina (Big Valley), a town above the Skocjan Caves, in the Karst Region (Kras Region) of Slovenia, Europe

Outlook over the gorge of the Skocjan caves, UNESCO World Heritage Site, Slovenia, Europe

The village of Skocjan sits on a karst plateau, Slovenia, Europe

View of mountains near Logarska Dolina, Slovenia, Europe

Skocjan caves, UNESCO World Heritage Site, Slovenia, Europe

Slovenia, Inside The Skocjan Cave Illuminated

Slovenia, Inside The Skocjan Cave Illuminated

Slovenia, Inside The Skocjan Cave Illuminated, Stalagtites

The Skocjan Caves, carved out by the River Reka, Slovenia

Sinter terraces in the Skocjan caves - Slovenia