B℮n: Gothic nature of Postojnska cave
B℮n: Postojnska cave truly shows its creativity
B℮n: Daylight entering the mysterious Škocjan cave entrance
B℮n: The Reka river plunging inside the sinkhole deep down Earth
B℮n: Underground phenomena in the Karst region of Slovenia
B℮n: Draperies or curtains of calcite hanging downward
B℮n: Nature's speleothems art at the Postojnska Cave
B℮n: Proteus Anguinus - Human Fish without eyes deep in the cave
B℮n: The mysterious karst cave system at Postojna
B℮n: The elephant stalagmite
B℮n: The river Reka flows down into the sinkhole
B℮n: A panview on the sinkhole caused by karst processing
B℮n: Each stair the Reka river steps deeper into the Škocjan Caves
B℮n: Fascinating depth of the 163 meter Velika dolina Sinkhole
B℮n: A journey to the center of the Earth at the Škocjan Caves
B℮n: The underground phenomena: The Škocjan Caves
B℮n: Glowing ice crystals at the ice cave
B℮n: Squeezing through a narrow passage deep inside the ice cave
B℮n: The heart of the ice cave allows blue to shine through
B℮n: The deepest blue coloration of the ice cave crystals
B℮n: Smeltwater rivier stroomt uit de ijsgrot
B℮n: Diamond Cave
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B℮n: Grot
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