989-224 - 150 million year old fossilised footprint (ichnite) of theropod dinosaur in karst limestone rock, Terenes, Asturias, Spain, Europe

989-221 - Buelna beach and karst limestone El Picon rock pillar at high tide on a windy day, near Llanes, Asturias, Spain, Europe

989-227 - Castro de Gaviotas (Gull's fort) karst limestone rock archway, and La Canalina bay, near Llanes, Asturias, Spain, Europe

989-152 - Waterfalls cascade down the karst limestone cliffs of the Cirque de Gavarnie, Pyrenees National Park, Hautes-Pyrenees, France, Europe

1113-38809 - View from the Kyauk Ka Lat Pagoda on a rock, golden stupa in front of karst mountains, Kayin State, Myanmar, Birma, Asia

1113-31144 - Water buffalo pulling cart with hay and farmer, karst formations in the background, Shilin, Yunnan, People's Republic of China, Asia

1116-9235 - Karst Landscape; Fanore, County Clare, Ireland

1116-9236 - Karst Landscape; Fanore, County Clare, Ireland

1116-9306 - Karst-Landscape; The Burren, County Clare, Ireland

1116-5771 - Li River Running Through Guangxi, China

1116-852 - Poulnabrone Dolmen, The Burren, County Clare, Ireland

1116-5770 - Li River Running Through Guangxi, China

1109-94 - Limestone karst rocks at Phra Nang Beach, South Islands, Thailand, Southeast Asia, Asia

989-37 - Natural rock archway carved by the sea through karst limestone rock at Cuevas del mar (sea caves) beach, near Llanes, Asturias, Spain.

989-46 - Adiabatic clouds forming on the 1900m high karst limestone Bohinj Ridge Mountains in the Julian Alps, as rising air cools, with grasses and Dwarf pines (Pinus mugo) growing between areas of exposed rock, Triglav National Park, Slovenia.

989-33 - Thrift (Armeria maritima), Rock sea lavender (Limonium binervosum) and Coastal ragwort (Senecio leucanthemifolius) flowering on karst limestone sea cliffs at Pria, near Ribadesella, Asturias, Spain.

829-1005 - A man climbing down into a channel between the limestone karsts of the Grand Tsingy in Tsingy de Bemaraha National Park, UNESCO World Heritage Site, western Madagascar, Madagascar, Africa

829-1006 - View of the tourist hiking trail through the limestone karsts of the Grand Tsingy in Tsingy De Bemaraha National Park, UNESCO World Heritage Site, western Madagascar, Madagascar, Africa

829-1004 - Ladder leading down into a channel between the limestone karsts of the Grand Tsingy in Tsingy de Bemaraha National Park, UNESCO World Heritage Site, western Madagascar, Madagascar, Africa

733-3182 - Karst limestone rock formations at Zhangjiajie Forest Park, Wulingyuan Scenic Area, UNESCO World Heritage Site, Hunan Province, China, Asia

733-3181 - Karst limestone rock formations at Zhangjiajie Forest Park, Wulingyuan Scenic Area, UNESCO World Heritage Site, Hunan Province, China, Asia

733-3073 - Sunset over karst limestone scenery on the Li river (Lijiang) in Yangshuo, near Guilin, Guangxi Province, China, Asia

733-3072 - Karst limestone scenery on the Li river (Lijiang) in Yangshuo, near Guilin, Guangxi Province, China, Asia

733-3068 - Early morning mist clinging to karst limestone scenery around Yangshuo, near Guilin, Guangxi Province, China, Asia

733-3067 - Karst limestone scenery surrounding a village in Yangshuo, near Guilin, Guangxi Province, China, Asia

777-793 - Rock formations, The Burren, County Clare, Munster, Republic of Ireland, Europe

777-792 - Rock formations, The Burren, County Clare, Munster, Republic of Ireland, Europe

777-791 - Rock formations, The Burren, County Clare, Munster, Republic of Ireland, Europe

777-789 - Rock formations, The Burren, County Clare, Munster, Republic of Ireland, Europe

774-19 - 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.

83-11986 - 'Bacon strip' curtain formations at King Solomon's Cave in the Mole Creek Karst National Park, the north, Tasmania, Australia, Pacific

83-11981 - Stalactites at King Solomon's Cave in the Mole Creek Karst National Park, the north, Tasmania, Australia, Pacific

83-11988 - Stalactites, stalagmites and rimstone at Marakoopa Cave in Mole Creek Karst National Park, the north, Tasmania, Australia, Pacific

83-11982 - Stalactites, stalagmites and columns at King Solomon's Cave in the Mole Creek Karst National Park, the north, Tasmania, Australia, Pacific

83-11989 - Stalactites, stalagmites and columns at King Solomon's Cave in the Mole Creek Karst National Park, the north, Tasmania, Australia, Pacific

83-11983 - Stalactites and columns at King Solomon's Cave in the Mole Creek Karst National Park, the north, Tasmania, Australia, Pacific

83-11987 - 'Bacon strip' curtain formations at King Solomon's Cave in the Mole Creek Karst National Park, the north, Tasmania, Australia, Pacific