Spectators at Cowes Week 2013 in Cowes, Isle of Wight (© Alan Crowhurst/Getty Images)

Sunflowers blooming in a field in summer (© Arsgera/Shutterstock)

Great grey owls in their nest, Finland (© imageBROKER.com/Alamy Stock Photo)

Tide pools in La Jolla, California, United States (© Andrew Shoemaker/DanitaDelimont.com)

Ring-tailed lemur infant playing with its own tail, Madagascar (© Andy Rouse/Nature Picture Library)

Sweetheart Abbey, Dumfries and Galloway, Scotland (© Westend61/Getty Images)

Hot air balloons over a golf course during the Bristol International Balloon Fiesta (© Ben Birchall/PA Images/Getty Images)

Ngātoroirangi Mine Bay Māori Rock Carvings on Lake Taupō, New Zealand (© Joppi/Getty Images)

Lioness in Maasai Mara National Reserve, Kenya (© Tandem Stock/Adobe Stock)

Village of Santa Maddalena, Dolomites, Italy (© Sakrapee Nopparat/Getty Images)

African elephant herd, Amboseli National Park, Kenya (© Chase Dekker/Minden Pictures)

A man rappels off Corona Arch near Moab, Utah, United States (© Grant Ordelheide/TANDEM Stills + Motion)

Cable car station on Piz Nair mountain, Graubünden, Switzerland (© Roberto Moiola/Alamy)

Spotted eagle rays, San Cristóbal Island, Galápagos Islands, Ecuador (© Tui De Roy/Minden Pictures)

Wild garlic, Greatwood Copse, Isle of Wight, England (© Available Light Photography/Alamy Stock Photo)

Lyngvig Lighthouse, Hvide Sande, Denmark (© Caroline Brundle Bugge/Getty Images)

Avalanche Lake Trail at Adirondack High Peaks, New York, United States (© Posnov/Getty Images)

The Three Musketeers Falls at Iguazú Falls, Argentina (© Mark Meredith/Getty Images)

The citadel in Bonifacio, Southern Corsica, France (© Marc Dozier/Getty Images)

Wheatear and flowering heather, Peak District National Park, England (© Ben Hall/Nature Picture Library)

Rolling hills of the Palouse, Washington, United States (© svetlana57/Getty Images)

European fallow deer, England (© Enrique Aguirre Aves/Getty Images)

Calcite Springs Overlook and Yellowstone River, Yellowstone National Park, Wyoming, United States (© Rebecca L. Latson/Getty Images)

Trullo buildings in Alberobello, Apulia, Italy (© Feng Wei Photography/Getty Images)

Sørvágsvatn lake, island of Vágar, Faroe Islands (© Anton Petrus/Getty Images)

Great white egret, Hungary (© Markus Varesvuo/Nature Picture Library)

Aerial view of Plaza Mayor, Madrid, Spain (© AirPano LLC/Amazing Aerial Agency)

Whale shark off the coast of Alifu Dhaalu Atoll, Maldives (© Bachir Moukarzel/Amazing Aerial Agency)

Scotts Bluff National Monument in Gering, Nebraska, United States (© Hawk Buckman/Getty Images)

Rock layers in Zumaia, Basque Country, Spain (© Eloi_Omella/Getty Images)