Cliffside, beachgoers and umbrellas, Praia dos Pescadores (Fishermans Beach), Albufeira, Faro district, Algarve, Portugal

Desert elephant (Loxodonta africana), Huab River Valley, Torra Conservancy, Damaraland, Namibia, Africa

Wahban Crater (caldera) in Hejaz Mountains northeast of Jeddah, Saudi Arabia, Middle East

Rainbow Arch, in sandstone, north of Al Ula, North West Saudi Arabia, Middle East

A team of four climbers return to base camp after climbing Ama Dablam in the Nepal Himalayas, Khumbu Region, Nepal, Asia

A team of four climbers return to base camp after climbing Ama Dablam in the Nepal Himalayas, Khumbu Region, Nepal, Asia

A trekker stops on the trail for some fuel, with Ama Dablam is the peak visible in the distance, Khumbu Region, Nepal, Asia

A rafting expedition on the Karnali River, west Nepal, Asia

View of Mount Fitz Roy on Laguna de Los Tres trail, El Chalten, Patagonia, Argentina, South America

The illuminated interior of Paradise Cave in Phong Nha Ke Bang National Park, Quang Binh, Vietnam, Indochina, Southeast Asia, Asia

Man walks to the lighthouse and historic fortress of Skansin,Torshavn, Streymoy Island, Faroe Islands, Denmark, Europe

Mer de Glace Glacier Ice Cave, Mont Blanc Massif, Chamonix, Haute-Savoie, French Alps, France, Europe

Dawn patrol at the Fiesta Hot Air Balloon Festival, Albuquerque, New Mexico, United States of America, North America

Tourists walking down from top of El Teide volcano to Teide Cable Car in early moning, Tenerife, Canary Islands, Spain, Atlantic, Europe

Two people walking the cliff top coastal long distance footpath trail, The Fisherman's Walk (Ruta Vicentina), near Odeceixe, Algarve, Portugal, Europe

Standing stones in south east quadrant neolithic stone circle henge prehistoric monument, Avebury, UNESCO World Heritage Site, Wiltshire, England, United Kingdom, Europe

Xstrata Treetop Walkway, Royal Botanic Gardens, UNESCO World Heritage Site, Kew, London, England, United Kingdom, Europe

Walker looking over Crowden Great Brook valley from Laddow Rocks, Peak District National Park, Derbyshire, England, United Kingdom, Europe

Walls of the ball court (Juego de Pelota), Mayan ruins, Chichen Itza, UNESCO World Heritage Site, Yucatan, Mexico, North America

The Nunnery (Edificio de las Monjas), Mayan ruins, Chichen Itza, UNESCO World Heritage Site, Yucatan, Mexico, North America

Carved stonework details, Temple of Panels (Templo de los Tableros Esculpidos), Mayan ruins, Chichen Itza, UNESCO World Heritage Site, Yucatan, Mexico, North America

Street and house in historic town with Christian church and Buddhist temple, UNESCO World Heritage Site, Galle, Sri Lanka, Asia

Sign for 98 Acres Resort Heli Pad, Ella, Badulla District, Uva Province, Sri Lanka, Asia

Paddy field rice farming terraces, Ella, Badulla District, Uva Province, Sri Lanka, Asia

Punt on The Backs, River Cam, Kings College, Cambridge, Cambridgeshire, England, UK, Europe

Horseshoe Falls, Niagara Falls, Niagara, Ontario, Canada, North America

Bullfighter, bull and cape, New Fairs, Ponte de Lima, Minho, Portugal, Europe

Woman standing on the ice of Fox Glacier, Westland Tai Poutini National Park, South Island, New Zealand, Pacific

Cave in waterfall undercut, Cathedral Gorge in Purnululu National Park (Bungle Bungle), UNESCO World Heritage Site, Western Australia, Australia, Pacific

Blue wildebeest (Connochaetes taurinus) (gnu), Amboseli National Park, Kenya, East Africa, Africa

A young woman boils water for coffee in the early morning light while camping in Samburu National Park, Kenya,East Africa, Africa

Train journey through countryside near Nuwara Eliya,, Sri Lanka, Asia

Metal staircase climbing to rock palace fortress, Sigiriya, UNESCO World Heritage Site, Central Province, Sri Lanka, Asia

Mountain scenery and Chinese female hiker at Wutaishan (Five Terrace Mountain) one of China's sacred Buddhist mountain ranges, Shanxi province, China, Asia

Schooling yellowmask surgeonfish (Acanthurus mata) and blue and yellow fusilier fish (Caesio teres) at the upstream side of Mike's Point, Raja Ampat, Indonesia, Southeast Asia, Asia

Serene waterfall cascading over rocks with lush greenery in the background, showcasing nature's tranquility, North Yorkshire, England, United Kingdom, Europe

Mount Etna, Sicily, Italy, Europe

Saint Nicholas chapel, Firopotamos, Milos Island, Cyclades Islands, Greek Islands, Greece, Europe

Kentarchos beach, Serifos Island, Cyclades, Greek Islands, Greece, Europe

View of Chora village and Sifnos island in the distance, Chora, Serifos Island, Cyclades, Greek Islands, Greece, Europe

Kentarchos beach, Serifos Island, Cyclades, Greek Islands, Greece, Europe

Koutalas beach, Serifos Island, Cyclades, Greek Islands, Greece, Europe

Paragliding below summit of Mont Blanc, Chamonix, Haute-Savoie, French Alps, France, Europe

Scenic view of a mountain path with lush greenery under a cloudy sky at Malham Cove, Yorkshire, England, United Kingdom, Europe

Diverging plates in a volcanic fissure zone, Myvatn, Iceland, Polar Regions

Thermal baths, Sciacca, Agrigento district, Sicily, Italy, Mediterranean, Europe

View of Prophet Elias Monastery perched on the top of Sifnos Island northern coast, Sifnos Island, Cyclades, Greek Islands, Greece, Europe

Kamares beach, Kamares, Sifnos Island, Cyclades, Greek Islands, Greece, Europe

Mule walking through Kastro village street, Kastro, Sifnos Island, Cyclades, Greek Islands, Greece, Europe

Historic building with clock tower near a ferris wheel under clear blue sky in Hastings, East Sussex, England, United Kingdom, Europe

Climber at Mer de Glace glacier, Chamonix, Haute-Savoie, French Alps, France, Europe

Ski touring, Chamonix, Haute-Savoie, French Alps, France, Europe

Ice climber at Mer de Glace glacier, Chamonix, Haute-Savoie, French Alps, France, Europe

Vallee Blanche, Chamonix, Haute-Savoie, French Alps, France, Europe

Malpais badlands volcanic landscape Montana Negra and Caldera Colorada, Parque Natural Los Volcanes, Masdache, Lanzarote, Canary islands, Spain, Atlantic, Europe

Motorhome on straight sealed tarmac road crossing lava flows, Malpais de Corona, Lanzarote, Canary Islands, Spain, Atlantic, Europe

Quadbiking in Paracas National Reserve (Reserva Nacional de Paracas), Ica, Peru, South America

Tourist exploring Valle de la Luna (Valley of the Moon), La Paz, La Paz Department, Bolivia, South America

Nikia village and Nisyros volcano in the distance, high anlgle view, Nisyros Island, Dodecanese Islands, Greek Islands, Greece, Europe

People walking around Stefanos crater moonlike landscape, Nisyros Island, Dodecanese Islands, Greek Islands, Greece, Europe

Agali bay, top view, Agali, Folegandros Island, Cyclades Islands, Greek Islands, Greece, Europe

Lake Brienz, Brienz, Bernese Oberland, Switzerland

Brienz Rothorn train at Brienzer Rothorn mountain, Bernese Oberland, Switzerland

Das Kreuz (The Cross) peak and Brienz Rothorn train at Brienzer Rothorn mountain, Bernese Oberland, Switzerland

Brienz Rothorn train and Lake Brienz, Brienz, Bernese Oberland, Switzerland

Restaurant at Brienzer Rothorn mountain, Brienz, Bernese Oberland, Switzerland

Schynige Platte, Jungfrau Region, Bernese Oberland, Switzerland

View of Thun and Lake Thun from Niesen mountain, Canton of Bern, Switzerland

Couple at peak of Niesen mountain, Canton of Bern, Switzerland

Restaurant at peak of Niesen mountain, Canton of Bern, Switzerland

Scenic view of a lush valley with mountains under a clear blue sky in Tenerife, Canary Islands, Spain, Atlantic, Europe

Tourists silhouetted on a camel ride at night, Erg Chebbi Desert, Sahara Desert near Merzouga, Morocco, North Africa, Africa

Glowing tents at Samogaon on the Manaslu circuit trek, Himalayas, Nepal, Asia

Harrate viewpoint, Al Ula, Saudi Arabia, Middle East

Al Ula, seen from Harrate viewpoint, North West Saudi Arabia, Middle East

Scenic limestone valley with a gravel path leading through, under a partly cloudy sky, North Yorkshire, England, United Kingdom, Europe

Rijal al Ma'a (Rijal Almaa) Heritage Village, near Abha, Asir, South West Saudi Arabia, Middle East

Mountain landscape of Serrania de Ronda, near Cueva de la Pileta, Malaga province, Andalusia, Spain, Europe

Torre de los Alumbres, Rodalquilar, Cabo de Gata national park, Almeria, Andalusia, Spain, Europe

Fort Bravo (Texas Hollywood), Tabernas, Almeria, Andalusia, Spain

Bari, Apulia, Italy

Preveli Beach, high angle view, Rethymno, Crete, Greek Islands, Greece

Polignano a Mare, Bari, Apulia, Italy

Polignano a Mare, Bari, Apulia, Italy

Polignano a Mare, Bari, Apulia, Italy

Lama Monachile beach, Polignano a Mare, Bari, Apulia, Italy

Marquis Arch, Polignano a Mare, Bari, Apulia, Italy

Eraclea Minoa beach, elevated view, Cattolica Eraclea, Agrigento district, Sicily, Italy

Scala dei Turchi, Agrigento, Sicily, Italy

Cave of Poetry (Grotta della Poesia), Roca Vecchia, Lecce, Salento, Apulia, Italy

Barletta, Barletta-Andria-Trani, Apulia, Italy

Cala Porto Rosso Beach, Monopoli, Bari, Apulia, Italy

Surroundings of Monopoli, Bari, Apulia, Italy

Santa Maria di Leuca, Castrignano del Capo, Lecce, Salento, Apulia, Italy

Santa Maria di Leuca, Castrignano del Capo, Lecce, Salento, Apulia, Italy

Castle of Carlo V, Lecce, Salento, Apulia, Italy

Trulli, Rione Monti, UNESCO, Alberobello, Bari, Apulia, Italy

Gullfoss waterfall, Golden Circle, Iceland, Polar Regions

Carboniferous limestone karst scenery, near Benimaurell, Vall de Laguar, Marina Alta, Alicante province, Spain, Europe

Trani, Barletta-Andria-Trani, Apulia, Italy