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The Potočka Zijalka cave is archaeologically and paleontologically one of the most important caves in Slovenia. There were found the bones of cave bear and tools belonging to Stone Age hunters dating from around 30,000 years ago.
mystical, mysterious and long horizontal cave
Entrance to an old mine
Wulong karst formations in China.
Rock Tunnel on Sylvan Lake Trails in Custer State Park, Black Hills Country, South Dakota, USA
schwedenhöhle / gohrisch, sandstone cave saxon switzerland, germany
North coastline of Spain in Viavélez,Asturias, Spain. Breaking waves, caves,sea,coastline cliff.
A beach on the Penwith Coast of Cornwall
Ordesa y Monte Perdido National Park,  Pyrenees, Spain
The white cliffs of England hold significant cultural importance.
Entrance too caves
Large stones and green grass, moss, lichen
Tranquil rock and it's reflecting on water in Son Doong Cave, the largest cave in the world, is in the heart of the Phong Nha Ke Bang National Park in the Quang Binh province
Lion rock formation at coast of millport town at famous touristic cumbrae island at near largs glasgow scotland england UK
Stone well in Quinta da Regaleira complex in Sintra, Portugal
A sea arch on the Antrim Coast, County Antrim,  Northern Ireland, UK.
Cave church, panorama from man-made caves, Lesnovo, Macedonia. In the peaks of mountain near monastery complex there are a number of man-made caves, and commemorative plaques.
Dublin, Ireland - July 16, 1986: 1980s old Positive Film scanned, Escape Tunnel of Blarney Castle, medieval stronghold, County Cork, Ireland.
Ocean bay in rock shore with waves at Bufones de Pria in Asturias part of Camino de Santiago
Landscape photo of the spectacular rock formations at popular tourist destination, The Quarry, near Kiama, a town on the south coast of NSW
Santianes, a town in Asturias, Spain
The beautiful landscape around Slave Rock (Trælanípa) by Lake Sørvágsvatn/Leitisvatn (name is debatable, depending on who you ask), on the island of Vágar, Faroe Islands. Sørvagsvatn
Thor's Cave in Peak District
Rocks in water  Reynisfjara black sand beach on cloudy and rainy weather. It is  Dyrhólaey area on Southern Iceland known for Gardar basalt columns. The rock have a shape of left hand fist.
Close-up of the Vestmann Islands off the Southern coast of Iceland
The Great Pollen Arch is a impressive natural wonder was created the power of waves and wind.
Cave at the hafod estate
Grjótagjá cave entrance in North Iceland
Little Skellig - World's second largest gannet colony
Natural arch on the Pembrokeshire coastline, Wales, UK
Free Images: "bestof:Aillwee cave23.JPG en Bones of bear in Aillwee Cave in Burren in Ireland Own Topika26 10 5 2008 Aillwee cave"
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