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.

Cenote Ik Kil, near Chichen Itza, Yucatan, Mexico, North America

Cenote Ik Kil, near Chichen Itza, Yucatan, Mexico, North America

Cenote Samula, near Valladolid, Yucatan, Mexico, North America

Grape vines growing in black volcanic soil in protected enclosed pits, La Geria, Lanzarote, Canary Islands, Spain, Atlantic, Europe

Cenote Dzitnup, near Valladolid, Yucatan, Mexico, North America

Cenote Zaci, Valladolid, Yucatan, Mexico, North America

Cenote Zaci, Valladolid, Yucatan, Mexico, North America

Garden in the Ducal Courtyard, Sforzesco Castle (Castello Sforzesco), Milan, Lombardy, Italy, Europe

Wailua Falls, Kauai, Hawaii, United States of America, Pacific

The hypersaline and entirely enclosed inner lagoon on Niau Atoll, Tuamotus, French Polynesia, South Pacific, Pacific

Free-range Norfolk bronze turkeys return to their barn after roaming at Sheepdrove Organic Farm , Lambourn, England

Bull and friesian cow, Oxfordshire, The Cotswolds, United Kingdom

Grand house period property with dry stone wall near Winchcombe, Gloucestershire, The Cotswolds, England, United Kingdom

Cattle crammed tightly together in a pen at cattle auction in Ennis, County Clare, West of Ireland

Dry stone wall near Rosmuck, Connemara, County Galway, Ireland

Chicken penned inside a hen house, Cotswolds, United Kingdom. If Avian Flu (Bird Flu) spreads from Europe all poultry may be forced indoors.

Small unturned boat on the quay and small boats in the enclosed harbour at Mousehole, Cornwall, England, United Kingdom, Europe

Small fishing boats in the enclosed harbour at Mousehole, Cornwall, England, United Kingdom, Europe

Small boat on the quay and small boats in the enclosed harbour at Mousehole, Cornwall, England, United Kingdom, Europe

Dinosaur bones, Dinosaur National Monument, Utah, UsaDinosaur bones in the enclosed quarry at these rich Morrison Formation fossil beds that have yielded many fine Jurassic specimens since 1909

Dinosaur bones, Dinosaur National Monument, Utah, UsaDinosaur bones in the enclosed quarry at these rich Morrison Formation fossil beds that have yielded many fine Jurassic specimens since 1909

Dinosaur bones, Dinosaur National Monument, Utah, UsaDinosaur bones in the enclosed quarry at these rich Morrison Formation fossil beds that have yielded many fine Jurassic specimens since 1909

Dinosaur Skeleton, Dinosaur National Monument, Utah, UsaNearly complete dinosaur skeleton in the enclosed quarry at these rich Morrison Formation fossil beds that have yielded many fine Jurassic specimens since 1909

Overall of pool and surrounding area, white picket fence, 5 chaise lounges in a row by pool. Rectangular shape w/half circles at each end. Trees in background

Traditional music of Galicia. Gaiteiros Rio de anxo. Old Town, Santiago de Compostela, UNESCO World Heritage Site, Galicia, Spain. Bagpipes are a woodwind instrument using enclosed reeds fed from a constant reservoir of air in the form of a bag. The Scottish Great Highland bagpipes are the best known examples in the Anglophone world, but people have played bagpipes for centuries throughout large parts of Europe. The term bagpipe is equally correct in the singular or the plural, though pipers usually refer to the bagpipes as the pipes, a set of pipes or a stand of pipes.

Traditional music of Galicia. Gaiteiros Rio de anxo. Old Town, Santiago de Compostela, UNESCO World Heritage Site, Galicia, Spain. Bagpipes are a woodwind instrument using enclosed reeds fed from a constant reservoir of air in the form of a bag. The Scottish Great Highland bagpipes are the best known examples in the Anglophone world, but people have played bagpipes for centuries throughout large parts of Europe. The term bagpipe is equally correct in the singular or the plural, though pipers usually refer to the bagpipes as the pipes, a set of pipes or a stand of pipes.

Traditional music of Galicia. Gaiteiros Rio de anxo. Old Town, Santiago de Compostela, UNESCO World Heritage Site, Galicia, Spain. Bagpipes are a woodwind instrument using enclosed reeds fed from a constant reservoir of air in the form of a bag. The Scottish Great Highland bagpipes are the best known examples in the Anglophone world, but people have played bagpipes for centuries throughout large parts of Europe. The term bagpipe is equally correct in the singular or the plural, though pipers usually refer to the bagpipes as the pipes, a set of pipes or a stand of pipes.

Mars-500 landing training

Tunnel of Torii Gates, Fushimi Inari Shrine, Kyoto, Japan

Aerial view of Windsborn crater lake, rural district of Daun, Eifel, Rhineland Palatinate, Gemany, Europe

Aerial view of Windsborn crater lake, rural district of Daun, Eifel, Rhineland Palatinate, Gemany, Europe

Diver, subglacial diving, ice diving, in the frozen Black Sea, a rare phenomenon, last time it occured in 1977, Odessa, Ukraine, Eastern Europe

Arab in front of Khor Al Udeid Beach, Khor El Deid, Inland Sea, desert miracle of Qatar, Emirate of Qatar, Persian Gulf, Middle East, Asia

Qatari in traditional clothing with gutra, in front of Khor Al Udeid Beach, Khor El Deid, Inland Sea, desert miracle of Qatar, Emirate of Qatar, Persian Gulf, Middle East, Asia

Preparations for subglacial diving, ice diving in the frozen Black Sea, a rare phenomenon which last occured in 1977, Odessa, Ukraine, Eastern Europe

Qatari in traditional clothing with gutra, in front of Khor Al Udeid Beach, Khor El Deid, Inland Sea, desert miracle of Qatar, Emirate of Qatar, Persian Gulf, Middle East, Asia

Wild Cat (Felis silvestris) in the snow, Bavarian Forest National Park, enclosed area, Neuschoenau, Bavaria, Germany, Europe

Wild Cat (Felis silvestris) in the snow, Bavarian Forest National Park, enclosed area, Neuschoenau, Bavaria, Germany, Europe

Wild Cat (Felis silvestris) in the snow, Bavarian Forest National Park, enclosed area, Neuschoenau, Bavaria, Germany, Europe

Soft coral, leather coral (Lobophytum) with semi-enclosed polyps, detail, Pacific, Great Barrier Reef, UNESCO World Heritage, Australia, Oceania

Daisy enclosed by ice after freezing rain, Austria, Europe

Side view of two antique chairs enclosed in a fence, Old San Juan, Puerto Rico

Close-up view of Dammuso architecture, a typical, stone house structure on Pantelleria Island, Pantelleria Island, Trapani, Sicily, Italy

Enclosed balconies, Valletta, Malta

Oregon, Columbia River Gorge National Scenic Area, Road through colorful fall trees.

Building with enclosed balconies, Valletta, Malta

Ireland, County Dublin, Dublin City, Powerscourt Centre restaurants with people at tables beside shops in the enclosed old Georgian townhouse courtyard.

Ireland, County Dublin, Dublin City, Powerscourt Centre restaurants with people at tables beside shops in the enclosed old Georgian townhouse courtyard.

Footbridge in Costa Rican Forest, Arenal, Costa Rica

Footbridge in Costa Rican Forest, Costa Rica