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Limestone pinnacles in Shilin, Stone Forest, at Lunan, Yunnan, China
Sheltered lagoons, limestone islets and deserted beaches of the Lau group, or Exploring Isles, Northern Lau Group, Fiji, South Pacific
Limestone pinnacles on Mount Api, Gunung Mulu National Park, Sarawak, island of Borneo, Malaysia, Asia
View from coastal path of Durdle Door, arch of Purbeck limestone, near West Lulworth, Dorset, England, UK
Koh Phi Phi, limestone island that typifies the coastline around Phuket and Krabi, Thailand, Asia
Spectacular limestone outcrops and forested valleys of Zhangjiajie Forest Park in the Wulingyuan Scenic Area, Hunan Province, China
Poulnabrone dolmen megalithic tomb, Burren, County Clare, Munster, Republic of Ireland (Eire), EuropeThe Burren (from Irish: Boireann, meaning - great rock) is a unique karst landscape in northwest County Clare, Ireland. The limestone area measures 300 square kilometres and is roughly enclosed within the circle comprised by the villages Ballyvaughan, Kinvarra, Gort, Corrofin, Kilfenora, Lisdoonvarna and the Black Head lighthouse. The definitive article (ie "The" Burren) has only been added to the name by academics in the last few decades as it has always been traditionally called Boireann or Boirinn in Irish and Burren in English.
Tourist boat floating through the Puerto Princesa underground river, the New Wonder of the World, Puerto-Princesa Subterranean River National Park, UNESCO World Heritage Site, Palawan, Philippines, Southeast Asia, Asia
Tourists in a rowing boat entering the Puerto Princesa underground river, the New Wonder of the World, Puerto-Princesa Subterranean River National Park, UNESCO World Heritage Site, Palawan, Philippines, Southeast Asia, Asia
Puerto Princesa underground river, the New Wonder of the World, Puerto-Princesa Subterranean River National Park, UNESCO World Heritage Site, Palawan, Philippines, Southeast Asia, Asia
Tourist boat floating through the Puerto Princesa underground river, the New Wonder of the World, Puerto-Princesa Subterranean River National Park, UNESCO World Heritage Site, Palawan, Philippines, Southeast Asia, Asia
Limestone rocks near the sea, at sunset, The Burren, County Clare, Munster, Republic of Ireland (Eire), Europe
The desolate landscape of Lac Abbe, dotted with limestone chimneys, Djibouti, Africa
Frankincense trees growing wild on the limestone hillsides, Dhofar Mountains, Salalah, southern Oman, Middle East
Panoramic view of the Vinales Valley showing limestone hills known as Mogotes, Vinales, UNESCO World Heritage Site, Cuba, West Indies, Central America
Seventy Islands (Ngerukewid Islands Wildlife Preserve), forest-covered limestone rock, protected as a Nature Reserve, so can only be seen from the air, Palau, Micronesia, Western Pacific Ocean, Pacific
Seventy Islands (Ngerukewid Islands Wildlife Preserve), forest-covered limestone rock, protected as a Nature Reserve, so can only be seen from the air, Palau, Micronesia, Western Pacific Ocean, Pacific
Seventy Islands (Ngerukewid Islands Wildlife Preserve), forest-covered limestone rock, protected as a Nature Reserve, so can only be seen from the air, Palau, Micronesia, Western Pacific Ocean, Pacific
Karst limestone formations and lagoon in Wayag Island with the photographer's kayak, Raja Ampat, West Papua, Indonesia, Southeast Asia, Asia
Cenote Dzitnup, near Valladolid, Yucatan, Mexico, North America
Cenote Samula, near Valladolid, Yucatan, Mexico, North America
Cenote Ik Kil, near Chichen Itza, Yucatan, Mexico, North America
Cenote Ik Kil, near Chichen Itza, Yucatan, Mexico, North America
Scenic limestone cliffs with grassy slopes and rocky terrain under a cloudy sky in a mountainous region, North Yorkshire, England, United Kingdom, Europe
Snow capped Ingleborough and wind blown hawthorn tree on the limestone pavements on Twistleton Scar, Yorkshire Dales National Park, North Yorkshire, England, United Kingdom, Europe
Gnarled tree growing through the limestone pavement on Twistleton Scar, Yorkshire Dales National Park, Yorkshire, England, United Kingdom, Europe
Twisted hawthorn trees growing through the limestone pavement on Twistleton Scar, Yorkshire Dales National Park, Yorkshire, England, United Kingdom, Europe
Scala dei Turchi, Agrigento, Sicily, Italy
Riserva Naturale di Punta Bianca, Palma di Montechiaro, Agrigento, Sicily, Italy
Rock climber in action on the world-famous limestone cliffs of Chulilla, Valencia region, Spain
Green Bridge of Wales, Pembrokeshire, Wales, United Kingdom, Europe
Dark clouds over Ingleborough from Twisleton Scar, Yorkshire Dales, North Yorkshire, Yorkshire, England, United Kingdom, Europe
Snow capped Ingleborough from the limestone pavements on Twistleton Scar, Yorkshire Dales National Park, Yorkshire, England, United Kingdom, Europe
Snow capped Ingleborough from the limestone pavements on Twistleton Scar, Yorkshire Dales National Park, North Yorkshire, England, United Kingdom, Europe
Ingleborough mountain from the limestone pavements on Twistleton Scar End, Yorkshire Dales, England, United Kingdom, Europe
Church Rock, Broad Haven Beach, Pembrokeshire, West Wales, Wales, United Kingdom, Europe
Marble Arch Caves, County Fermanagh, Ulster, Northern Ireland, United Kingdom, Europe
Ingleborough seen from the limestone pavement on Twistleton Scar, North Yorkshire, England, United Kingdom, Europe
Sunset over a solitary tree growing on the limestone pavement at Malham Lings, North Yorkshire, Yorkshire, England, United Kingdom, Europe
Limestone cliffs above Malham Cove in the Yorkshire Dales National Park, Yorkshire, England, United Kingdom, Europe
Limestone cave interior with many stalactites and stalagmites, Drach caves (Cuevas del Drach), Porto Cristo, Mallorca, Balearic Islands, Spain, Mediterranean, Europe
Ornate columns formed by many hanging stalactites and rising stalagmites coalescing, Drach caves (Cuevas del Drach), Mallorca, Balearic Islands, Spain, Mediterranean, Europe
In Guilin limestone tower hills rise steeply above the Li River, Yangshuo, Guangxi Province, China
Hoodoos, limestone features, Badlands, Drumheller area, Alberta, Canada, North America
Fort Lovrijenac (St. Lawrence Fortress) at sunrise, Dubrovnik, Dalmatian Coast, Adriatic, Croatia, Europe
Waterfalls cascade down the karst limestone cliffs of the Cirque de Gavarnie, Pyrenees National Park, Hautes-Pyrenees, France, Europe
Scala dei Turchi, Agrigento, Sicily, Italy
Scala dei Turchi, Agrigento, Sicily, Italy
Small Tsingy, Tsingy de Bemaraha National Park, UNESCO World Heritage Site, Melaky Region, Western Madagascar, Africa
Flooded limestone cave interior with many stalactites and stalagmites and reflections, Drach caves (Cuevas del Drach), Mallorca, Balearic Islands, Spain, Mediterranean, Europe
The limestone coast of southern Oman, Mughsayl, Salalah, Dhofar, Oman, Middle East
Limestone pinnacles in Shilin, Stone Forest, at Lunan, Yunnan, China, Asia
Limestone desert landscape, Paraje Natural de Karst en Yesos de Sorbas, Almeria, Andalusia, Spain, Europe
Aerial view of lagoon and karst limestone formations in Wayag Island, Raja Ampat, West Papua, Indonesia, Southeast Asia, Asia
Rock church of Madonna della Stella, Gravina, Bari, Alta Murgia, Apulia, Italy
Rock climber in action at Leonidio, north-eastern Peloponnese, Greece
Rock climber in action on the world-famous limestone cliffs of Chulilla, Valencia region, Spain
Tsingy de Bemaraha National Park, UNESCO World Heritage Site, Melaky Region, Western Madagascar, Africa
People swimming in Cenote Zaci, carboniferous limestone swallow hole pool, Valladolid, Yucatan, Mexico, North America
People swimming in limestone sinkhole pool, Cenote Ik kil, Piste, Yucatan, Mexico, North America
Karst limestone formations in Wayag Island, Raja Ampat, West Papua, Indonesia, Southeast Asia, Asia
Tsingy de Bemaraha National Park, UNESCO World Heritage Site, Melaky Region, Western Madagascar, Africa
The Arch, in limestone cliff, Peterborough, Great Ocean Road, Victoria, Australia, Pacific
The desolate landscape of Lac Abbe, dotted with limestone chimneys, Djibouti, Africa
Carrick Island in Larrybane Bay, with a limestone headland, and Rathlin Island in the background, on the North Antrim Causeway Coast Way, County Antrim, Ulster, Northern Ireland, United Kingdom Europe
Scenic limestone valley with a gravel path leading through, under a partly cloudy sky, North Yorkshire, England, United Kingdom, Europe
The Gordale beck flowing through the narrow limestone gorge of Gordale Scar, North Yorkshire, England, United Kingdom, Europe
The karst limestone formation at Parc National des Tsingy de Bemaraha, UNESCO World Heritage Site, Tsiribihina region, Madagascar, Africa
The limestone cliffs, Cheddar Gorge, Somerset, England, UK
Montezuma Castle dating from 1100-1400 AD in limestone cliff, Sinagua, Arizona, USA, North America
Cenote Zaci, Valladolid, Yucatan, Mexico, North America
Ingleborough seen from a limestone boulder on Twistleton Scar, Yorkshire Dales National Park, North Yorkshire, England, United Kingdom, Europe
Karst limestone rock formations at Zhangjiajie Forest Park, Wulingyuan Scenic Area, UNESCO World Heritage Site, Hunan Province, China, Asia
Karst limestone formations and lagoon in Wayag Island with the photographer's kayak, Raja Ampat, West Papua, Indonesia, Southeast Asia, Asia
Ingleborough seen from a limestone boulder on Twistleton Scar, Yorkshire Dales National Park, North Yorkshire, England, United Kingdom, Europe
Tsingy de Bemaraha National Park, UNESCO World Heritage Site, Melaky Region, Western Madagascar, Africa
Ancient stone castle perched atop a rugged limestone hill under a clear blue sky in Bristol, England, United Kingdom, Europe
Carboniferous limestone karst scenery, near Benimaurell, Vall de Laguar, Marina Alta, Alicante province, Spain, Europe
Marble Arch Caves, County Fermanagh, Ulster, Northern Ireland, United Kingdom, Europe
Ingleborough seen from the limestone pavement on Twistleton Scar, North Yorkshire, England, United Kingdom, Europe
Limestone boulder on Southerscales Nature Reserve with Whernside in the distance, North Yorkshire, Yorkshire, England, United Kingdom, Europe
Pieskowa Skala Castle and Hercules Bludgeon, Trail of the Eagles' Nests, Krakow-Czestochowa Upland, Lesser Poland, Poland, Europe
Ancient quarry of Alyki, Thassos, Greek Islands, Greece, Europe
Ingleborough seen from Twistleton Scar, Yorkshire Dales National Park, North Yorkshire, England, United Kingdom, Europe
Tsingy de Bemaraha National Park, UNESCO World Heritage Site, Melaky Region, Western Madagascar, Africa
The limestone coast of southern Oman, Mughsayl, Salalah, Dhofar, Oman, Middle East
Ingleborough seen from the limestone pavement on Twistleton Scar, Yorkshire Dales National Park, North Yorkshire, England, United Kingdom, Europe
Ingleborough seen from a limestone boulder on Twistleton Scar, Yorkshire Dales National Park, North Yorkshire, England, United Kingdom, Europe
Ancient quarry of Alyki, Thassos, Greek Islands, Greece, Europe
Ancient quarry of Alyki, Thassos, Greek Islands, Greece, Europe
Lone Bare Ash Tree on Limestone Pavement, Malham Lings, Yorkshire Dales National Park, Yorkshire, England, United Kingdom, Europe
Early morning mist clinging to karst limestone scenery around Yangshuo, near Guilin, Guangxi Province, China, Asia
Tourist crossing a rope bride, Grand Tsingy, Tsingy du Bemaraha National Park, UNESCO World Heritage Site, western area, Madagascar, Africa
Ingleborough viewed from the limestone escarpment on Kingsdale, Yorkshire Dales National Park, North Yorkshire, England, United Kingdom, Europe
Eroded limestone rocks at Mewslade Bay, Gower, Wales, United Kingdom, Europe
Ancient quarry of Alyki, Thassos, Greek Islands, Greece, Europe
The limestone pavement on the top of Malham Cove, North Yorkshire, England, United Kingdom, Europe
Southerscales Limestone Pavement and Ingleborough, Yorkshire Dales National Park, Yorkshire, England, United Kingdom, Europe
Small Tsingy, Tsingy de Bemaraha National Park, UNESCO World Heritage Site, Melaky Region, Western Madagascar, Africa
Ancient quarry of Alyki, Thassos, Greek Islands, Greece, Europe