Lion (Panthera leo) yawning, Ngorongoro Conservation Area, UNESCO World Heritage Site, Serengeti, Tanzania, East Africa, Africa

La Foce mansion open to the public near Montepulciano in Val D'Orcia area of Tuscany, Italy

Crowds of spectactors on traditional open-topped buses in The Hill public area at Epsom Racecourse for Derby Day, UK

Staue of Napoleon, La Colonne Vendome, in Place Vendome, Central Paris, France

Exterior of terminal building Tirana International Airport, Nene Tereza (Mother Theresa) Rinas Airport, Tirana, Albania, Europe

Flat calm conditions in Crystal Sound, south of the Antarctic Circle, Antarctica, Southern Ocean. MORE INFO This area is full of flat first year sea ice, well developed icebergs, with many open leads.

Open grassland, Wetland conservation area, Parque Nacional da Lagoa do Peixe, Mostardas, Rio Grande do Sul, Brazil, South America

Mars (at left) and the galactic centre area of the summer Milky Way low over the southern horizon at Writing-on-Stone Provincial Park, Alberta, on June 8/9, 2018. Sagittarus is at centre, with Scorpius at right. The Messier 6 and 7 open star clusters are just above the horizon at centre, just right of the Sweetgrass Hills on the horizon in Montana.

The centre of the galaxy area of the Milky Way toward Sagittarius and Scorpius, with the Sagittarius Starcloud right of centre, and the Lagoon Nebula (M8) left of centre. The Cat's Paw Nebula (NGC 6334) in Scorpius is at upper right, the Swan Nebula (M17) and Eagle Nebula (M16) are at lower left. To the right of them is the Small Sagittarius Starcloud (M24). At the very top is the Snake Nebula (B72). The main mass of dark nebula is the Pipe Nebula (B78). Above M24 at left is the open cluster M23 while below the M24 star cloud is the cluster M25. The globular M22 is at the bottom edge. At right of frame are the open clusters M6 (in the dark area of the Milky Way) and M7 (in the bright starcloud).

The False Comet Cluster area of southern Scorpius, which includes the open cluster NGC 6231 and emission nebula IC 4628, and open cluster NGC 6242 at top. This is a superb binocular field.

French angelfish, Pomacanthus paru, Ilha rata, Fernando de Noronha national marine sanctuary, Pernambuco, Brazil (S. Atlantic)

Tourists riding camels, in Timanfaya National Park, Lanzarote, Canary Islands, Spain

Echadero de Camellos, Camels wait for the next ride with tourists, Timanfaya National Park, Ruta de Los Volcanes, Lanzarote, Spain

People sitting in the open air area of a restaurant at Lake Fuschl in the evening, Fuschl am See, Salzkammergut, Salzburg, Austria

Waiters taking order for guests in the open air area of a restaurant, Lake Fuschl, Fuschl am See, Salzkammergut, Salzburg, Austria

Seurasaari Island Recreation Area and Open Air Museum in Helsinki, Finland

Open fire place at the pool, Badescheune, spa area of Seehotel Neuklostersee, Mecklenburg - Western Pomerania, Germany

Couple drinking latte macchiato in an open-air cafe, Couple sitting in an open-air Cafe at Liszt Square and drinking latte macchiato, Pest, Budapest, Hungary

Open-air area of the Gellert Baths, People in the open-air area of the Gellert Baths, Buda, Budapest, Hungary

Open-air area of the Gellert Baths, People in the open-air area of the Gellert Baths, Buda, Budapest, Hungary

Open-plan living area, Neuenkirchen, North Rhine-Westphalia, Germany

Open-air area of the Gellert Baths, People in the open-air area of the Gellert Baths, Buda, Budapest, Hungary

Two men playing chess, Two men playing chess in an open-air restaurant at Raday Street, Pest, Budapest, Hungary

Bucket-wheel excavator, lignite mining, Garzweiler, near Jüchen, Erkelenz, North Rhine-Westphalia, Germany, Europe

Bucket-wheel excavators, Garzweiler lignite mining, near Jüchen, Erkelenz, North Rhine-Westphalia, Germany, Europe

Hippopotamus (Hippopatamus amphibius), yawning or threatening adult, St. Lucia Wetland Park, South Africa, Africa

Hippopotamus (Hippopotamus amphibius), measuing their strength in a threat display, Orangi River, Serengeti, Tanzania, Africa

Regensburg Upper Palatinate Bavaria Germany cathedral from the Kramgasse

Hippopotamus (Hippopatamus amphibius), yawning or threatening adult, St. Lucia Wetland Park, South Africa, Africa

House facades and cafes, Stari Grad, Island Hvar, Dalmatia, Croatia

Restaurants and tourists on the board walk, paseo, Altea, Costa Blanca, Spain

Aerial photo, Maximare adventure pool in the snow, Hamm, Ruhr Area, North Rhine-Westphalia, Germany, Europe

Bear canister, waterproof and bear safe packed equipment, Glacier Bay National Park, Alaska, USA

Open space photovoltaic plant, currently the largest site in North Rhine-Westfalia, covering an area of 80, 000 square metres with a capacity of 3600 kWp, Troisdorf-Oberlar, North Rhine-Westfalia, Germany, Europe

Humberstone Saltpeter Works, UNESCO World Heritage Site, Atacama Desert, northern Chile, Chile, South America

Aerial view, former steelwork grounds, Neue Mitte Oberhausen commercial development area, Centro shopping mall, marina, water park, Rhine-Herne Canal, Emscher river, A42 motorway, Oberhausen, Ruhrgebiet area, North Rhine-Westphalia, Germany, Europe

Aerial view, former steelwork grounds, Neue Mitte Oberhausen commercial development area, Centro shopping mall, marina, water park, Rhine-Herne Canal, Emscher river, A42 motorway, Oberhausen, Ruhrgebiet area, North Rhine-Westphalia, Germany, Europe

Blue Lagoon geothermal spa, Iceland, Europe

Aerial view, Rietzgartenviertel district, Maximare Spa, Sauna and Wellness Resort, sauna, sunbathing area, outdoor pool, Hamm, Ruhr Area, North Rhine-Westphalia, Germany, Europe

Aerial view, Rietzgartenviertel district, Maximare Spa, Sauna and Wellness Resort, sauna, sunbathing area, outdoor pool, Hamm, Ruhr Area, North Rhine-Westphalia, Germany, Europe

Global Rheingold, theatrical spectacle of the Spanish theatre group La Fura dels Baus, opening of the theatre festival Duisburg accents, part of the European Capital of Culture Ruhr 2010 celebrations, open-air theatre on Mercatorinsel in the harbour of Du

White-clad trapeze artists hanging upside down from a platform in the air, Global Rheingold, open-air theater by La Fura dels Baus, Duisburg-Ruhrort, Ruhrgebiet area, North Rhine-Westphalia, Germany, Europe

White-clad trapeze artists and globe floating in the sky, Global Rheingold, open-air theater by La Fura dels Baus, Duisburg-Ruhrort, Ruhrgebiet area, North Rhine-Westphalia, Germany, Europe

Global Rheingold, theatrical spectacle of the Spanish theatre group La Fura dels Baus, opening of the theatre festival Duisburg accents, part of the European Capital of Culture Ruhr 2010 celebrations, open-air theatre on Mercatorinsel in the harbour of Du

Man with wings hanging on a rope, floating in the air, Global Rheingold, open-air theater by La Fura dels Baus, Duisburg-Ruhrort, Ruhrgebiet area, North Rhine-Westphalia, Germany, Europe

White-clad trapeze artists and globe floating in the sky, Global Rheingold, open-air theater by La Fura dels Baus, Duisburg-Ruhrort, Ruhrgebiet area, North Rhine-Westphalia, Germany, Europe

White-clad trapeze artists hanging from ropes, Global Rheingold, open-air theater by La Fura dels Baus, Duisburg-Ruhrort, Ruhrgebiet area, North Rhine-Westphalia, Germany, Europe

Global Rheingold, theatrical spectacle of the Spanish theatre group La Fura dels Baus, opening of the theatre festival Duisburg accents, part of the European Capital of Culture Ruhr 2010 celebrations, open-air theatre on Mercatorinsel in the harbour of Du

Aerial picture, open air church service on the occasion of the Feast of Corpus Christi, Herten palace gardens, Herten moated castle, Barockpark gardens, Herten, Ruhr Area, North Rhine-Westphalia, Germany, Europe

Water coming out of the dam wall, Inguri Dam between Georgia and Abkhazia, Middle East

Aerial picture, open air church service on the occasion of the Feast of Corpus Christi, Herten palace gardens, Herten moated castle, Barockpark gardens, Herten, Ruhr Area, North Rhine-Westphalia, Germany, Europe

Steppe, open plain, Polloquere springs, thermal baths, Salar de Surire, Salt Lake, Reserva Nacional de las Vicunas, Lauca National Park, Altiplano, Norte Grande, Northern Chile, Chile, South America

Historical Twenty Mule Team for the transport of borax, Borax Museum, Furnace Creek Ranch Resort Oasis, Death Valley National Park, Mojave Desert, California, United States of America, USA

Aerial view, Solebad Werne, public swimming pool, Werne, Ruhr Area, North Rhine-Westphalia, Germany, Europe

Breakwaters or groynes, coastal protection measures, Noderfriedrichskoog tidal flats, Nationalpark Schleswig-Holsteinisches Wattenmeer, Schleswig-Holstein Wadden Sea National Park, Eiderstedt peninsula, North Friesland region, Schleswig-Holstein, Germany,

Saltwort tidal flats, pioneer vegetation, salt marsh vegetation (Salicornia), red in autumn, Norderfriedrichskoog tidal flats, Nationalpark Schleswig-Holsteinisches Wattenmeer, Schleswig-Holstein Wadden Sea National Park, Eiderstedt peninsula, North Fries

Das nasse Archiv area, information board on peat extraction and marsh biotope, Moormuseum Moordorf museum near Aurich, Suedbrookmerland, East Frisia, Lower Saxony, Germany, Europe

View across the Wadden Sea with coastal protection, groynes, Hallig Langeness, small island, at back, North Sea shore, Schleswig-Holstein Wadden Sea National Park, Dithmarschen region, Schleswig-Holstein, Germany, Europe

Fence in the floodplains of Neufelder Koog, polder, Elbe estuary, North Sea coast, Schleswig-Holstein Wadden Sea National Park, Dithmarschen region, Schleswig-Holstein, Germany, Europe

Spreaders in an open-cast lignite mine in the early morning, Garzweiler, North Rhine-Westphalia, Germany, Europe

Wildcat (Felis silvestris) in snow, half portrait, open-air enclosure, Bavarian Forest National Park, Bavaria, Germany, Europe

Hippopotamus (Hippopotamus amphibius) with mouth wide open, Masai Mara National Reserve, Kenya, Africa

Young European Starlings (Sturnus vulgaris)

Aerial view, Etzweiler, lignite open-pit mining, Hambach Forest, Burgewald Steinheide, landscape conservation area, brown coal mining, protest, forest occupation, Merzenich, Rhineland, North Rhine-Westphalia, Germany, Europe

Kunstkaten art gallery, Baltic Sea resort town of Ahrenshoop, Fischland, Mecklenburg-Western Pomerania, Germany, Europe

White-clad trapeze artists hanging upside down from a platform in the air, Global Rheingold, open-air theater by La Fura dels Baus, Duisburg-Ruhrort, Ruhrgebiet area, North Rhine-Westphalia, Germany, Europe

White-clad trapeze artists and globe floating in the sky, Global Rheingold, open-air theater by La Fura dels Baus, Duisburg-Ruhrort, Ruhrgebiet area, North Rhine-Westphalia, Germany, Europe

Global Rheingold, theatrical spectacle of the Spanish theatre group La Fura dels Baus, opening of the theatre festival Duisburg accents, part of the European Capital of Culture Ruhr 2010 celebrations, open-air theatre on Mercatorinsel in the harbour of Du

White-clad trapeze artists hanging upside down from a platform in the air, Global Rheingold, open-air theater by La Fura dels Baus, Duisburg-Ruhrort, Ruhrgebiet area, North Rhine-Westphalia, Germany, Europe

Icelandic couple from the old days of the sagas in typical dress, picture in a tapestry, Skogar open-air museum, Iceland, Scandinavia, Northern Europe, Europe

Nile Crocodile (Crocodylus niloticus), mouth wide open, on the bank of the Chobe River, Chobe National Park, Botswana, Africa

Sedimentation pool, sludge pond in the mining area of ??the open pit mine, Erzberg mountain at Eisenerz, Styria, Austria, Europe

Goereme open air museum and UNESCO World Heritage Site, Cappadocia, Central Anatolia, Turkey, Asia

Aerial view, Wehofen, Niederrhein-Therme public pool, sauna, leisure centre, bathing, Marxloh, Duisburg, Ruhrgebiet region, North Rhine-Westphalia, Germany, Europe

Trapeze artists, Global Rheingold, performance by Catalan theatre group La Fura dels Baus, European Capital of Culture Ruhr.2010, Ruhrort, Duisburg, Ruhr Area, North Rhine-Westphalia, Germany, Europe

Open space photovoltaic plant, currently the largest site in North Rhine-Westfalia, covering an area of 80, 000 square metres with a capacity of 3600 kWp, Troisdorf-Oberlar, North Rhine-Westfalia, Germany, Europe

Giant illuminated figure on ropes walking, Global Rheingold, open-air theater by La Fura dels Baus, Duisburg-Ruhrort, Ruhrgebiet area, North Rhine-Westphalia, Germany, Europe

Wild tiger walking through an open area of dry grass in the dry forests of Ranthambore national park in India

Hebraic writing on the large open doors of the Ohel Jakob, Jacob's Tent Synagogue at the Jewish Center, Munich, Bavaria, Germany

WDR arcades, office, architect Gottfried Boehm, Cologne, NRW, Germany

Aerial photo, outdoor pool, Suedpol outdoors swimming pool, Herne, Ruhr area, North Rhine-Westphalia, Germany, Europe

Housing for workers, buildings, road, Humberstone, salpetre works, abandoned salpetre town, ghost town, desert, museum, UNESCO World Heritage Site, Iquique, Norte Grande region, Northern Chile, Chile, South America

Aerial picture, open air church service on the occasion of the Feast of Corpus Christi, Herten palace gardens, Herten moated castle, Barockpark gardens, Herten, Ruhr Area, North Rhine-Westphalia, Germany, Europe

Wild tiger walking through an open area of dry grass in the dry forests of Ranthambore national park in India

White-clad trapeze artists hanging upside down from a waved platform in the air, Global Rheingold, open-air theater by La Fura dels Baus, Duisburg-Ruhrort, Ruhrgebiet area, North Rhine-Westphalia, Germany, Europe

Entrance sign brewery, Westphalian Open-Air Museum Hagen, Road of Industry Culture, North Rhine-Westphalia, Germany

Bijusi PSRS Zeltenu kodolrakesu baze, former UssR Zelteni nuclear missile base, Zeltini parish, Aluksne Municipality, Vidzeme, Latvia, Northern Europe

Global Rheingold, theatrical spectacle of the Spanish theatre group La Fura dels Baus, opening of the theatre festival Duisburg accents, part of the European Capital of Culture Ruhr 2010 celebrations, open-air theatre on Mercatorinsel in the harbour of Du

Aerial view, Maximare Hamm adventure pool, swimming pool, Hamm, Ruhr area, North Rhine-Westphalia, Germany, Europe

Regensburg Upper Palatinate Bavaria Germany former main guard house at the Neupfarrplatz New Parish Square in front of the cathedral St Peter

Aerial picture, open air church service on the occasion of the Feast of Corpus Christi, Herten palace gardens, Herten moated castle, Barockpark gardens, Herten, Ruhr Area, North Rhine-Westphalia, Germany, Europe

The entrance to Daugbjerg limestone mines near Viborg, Jutland, Denmark, Europe

Nile Crocodile (Crocodylus niloticus) on the bank of the Chobe River, Chobe National Park, Botswana, Africa

Trapeze artists, Global Rheingold, performance by Catalan theatre group La Fura dels Baus, European Capital of Culture Ruhr.2010, Ruhrort, Duisburg, Ruhr Area, North Rhine-Westphalia, Germany, Europe

Solar energy system in an open area near Plattling, Bavaria, Germany, Europe

Tourists on safari watching a herd of Cape Buffalo (Syncerus caffer) from an open topped Land Rover, Sabi Sand Game Reserve, South Africa

Open space photovoltaic plant, currently the largest site in North Rhine-Westfalia, covering an area of 80, 000 square metres with a capacity of 3600 kWp, Troisdorf-Oberlar, North Rhine-Westfalia, Germany, Europe

Open space photovoltaic plant, currently the largest site in North Rhine-Westfalia, covering an area of 80, 000 square metres with a capacity of 3600 kWp, Troisdorf-Oberlar, North Rhine-Westfalia, Germany, Europe

Blue Lagoon geothermal spa, Iceland, Europe

White-clad trapeze artists hanging upside down from a platform in the air, Global Rheingold, open-air theater by La Fura dels Baus, Duisburg-Ruhrort, Ruhrgebiet area, North Rhine-Westphalia, Germany, Europe