Stack Rocks, Castlemartin, Pembrokeshire, Wales, United Kingdom, Europe

Church Rock, Broad Haven Beach, Pembrokeshire, West Wales, Wales, United Kingdom, Europe

Boat moored on Phranang Beach with limestone stack behind, Krabi, Thailand *** Local Caption ***

Stack Rocks, Castlemartin, Pembrokeshire Coast, Wales, United Kingdom, Europe

Stack Rocks, Castlemartin, Pembrokeshire Coast, Wales, United Kingdom, Europe

Sunset at Pulpit Rock, limestone sea stack on heavily quarried coast of Portland Bill on England's Jurassic Coast, UNESCO World Heritage Site, Dorset, England, United Kingdom, Europe

Devil's Chimney, Leckhampton Hill, Cheltenham, Gloucestershire, England, United Kingdom, Europe

Stack Rocks, Castlemartin, Pembrokeshire Coast, Wales, United Kingdom, Europe

Faraglioni (limestone stacks) of Torre Sant'Andrea in the crystal sea, Lecce province, Salento, Apulia, Italy, Europe

Limestone formations at Buttertubs on the Pass from Wensleydale to Swaldale, Yorkshire Dales, Yorkshire, England, United Kingdom, Europe

Sea stacks and dramatic limestone cliffs at The Twelve Apostles, Port Campbell National Park, Great Ocean Road, Victoria, Australia, Pacific

Sea stacks and dramatic limestone cliffs at The Twelve Apostles, Port Campbell National Park, Great Ocean Road, Victoria, Australia, Pacific

Sea stacks and dramatic limestone cliffs at The Twelve Apostles, Port Campbell National Park, Great Ocean Road, Victoria, Australia, Pacific

Sea stacks and dramatic limestone cliffs at The Twelve Apostles, Port Campbell National Park, Great Ocean Road, Victoria, Australia, Pacific

Sea stacks and dramatic limestone cliffs at The Twelve Apostles, Port Campbell National Park, Great Ocean Road, Victoria, Australia, Pacific

Sea stacks and dramatic limestone cliffs at The Twelve Apostles, Port Campbell National Park, Great Ocean Road, Victoria, Australia, Pacific

Limestone rocks at Tam Phra Nang beach, limestone, limestone rocks, travel, holiday, tourism, nature, natural landscape, Andaman Sea, climbing rocks, mountain, rock, rock, bizarre, sun, sunny, tropical, tropical, lagoon, sea, ocean, Asian, landscape, Krabi, Thailand, Asia

Forested limestone cliffs, Gam, Dampier Strait, Raja Ampat, Western New Guinea, Indonesia, Asia

Young woman during sunset, rocky coast of Scala dei Turchi, limestone rocks, Realmonte, Province of Agrigento, Sicily, Italy, Europe

Tourists during sunset, rocky coast of Scala dei Turchi, limestone rocks, Realmonte, Province of Agrigento, Sicily, Italy, Europe

Sunset, rocky coast of Scala dei Turchi, limestone rocks, Realmonte, Province of Agrigento, Sicily, Italy, Europe

The lime kiln building at the Monsted, Monsted Limestone Caves near Viborg, Jutland, Denmark, Europe

Limestone rock stack, Great Ocean Road, Port Campbell National Park, Victoria, Australia

Limestone rock in the sea, Phuket, Thailand, Asia

Limestone rock stacks, Great Ocean Road, Port Campbell National Park, Victoria, Australia

Limestone rock stack, Great Ocean Road, Port Campbell National Park, Victoria, Australia

Limestone rock stack, vegetation and coastal cliffs, Great Ocean Road, Port Campbell National Park, Victoria, Australia

The Twelve Apostles, limestone rock formations along the coast, Great Ocean Road, Port Campbell National Park; Port Campbell, Victoria, Australia

Sea Stack at Cathedral Cove, Te Whanganui-A-Hei, Coromandel Peninsula, North Island, New Zealand