BING PICTURES

Algae-covered pebbles at Church Ope Cove, Dorset, England (© Adam Burton/Robert Harding World Imagery/Getty Images)(Bing United Kingdom)

Colourful façade of a building in Little India, Singapore (© Blue Sky Studio/Shutterstock)(Bing United Kingdom)

Hot air balloons flying during the Albuquerque International Balloon Fiesta, New Mexico (© Blaine Harrington III/Corbis)(Bing United Kingdom)

The Carina Nebula (© NASA, ESA, N. Smith [University of California, Berkeley], and the Hubble Heritage Team [STScI/AURA])(Bing United Kingdom)

Rainbow over Pretzfeld, Franconian Switzerland, Bavaria, Germany (© Dr. Rüdiger Hess/geo-select fotoArt)(Bing United Kingdom)

Elephant Trunk Hill, Guilin, China (© Ajancso/Shutterstock)(Bing United Kingdom)

Saturniid moth, Yasuni National Park, Ecuador (© Pete Oxford/Minden Pictures)(Bing United Kingdom)

Fall foliage in Hudson Valley, New York (© Corbis)(Bing United Kingdom)

Water droplets on rough-stalked feather moss (© Duncan Usher/Minden Pictures)(Bing United Kingdom)

A conker on dry autumn leaves (© Aksenya/Shutterstock)(Bing United Kingdom)

Boardwalk of Cayeux-sur-Mer, France (© Bryant Nicolas/Alamy)(Bing United Kingdom)

The Venetian Harbour and Old Town of Chania, Greece (© Hercules Milas/Alamy)(Bing United Kingdom)

A tarsier at rest, Bohol Island, Philippines (© Deddeda/Getty Images)(Bing United Kingdom)

Rapa River delta in Sarek National Park, Sweden (© George Steinmetz/Corbis)(Bing United Kingdom)

Male gemsboks clash at Etosha National Park, Namibia (© Johan Swanepoel/Shutterstock)(Bing United Kingdom)

Tintagel on the Atlantic coast of Cornwall (© Rolf E. Staerk/Shutterstock)(Bing United Kingdom)

Autumn aspens in Grand Teton National Park, Wyoming (© Matt Anderson Photography/Getty Images)(Bing United Kingdom)

‘Spark art’ photography (© DI Mandl Alexander/Solent News/REX)(Bing United Kingdom)

Crested pigeon in Uluru-Kata Tjuta National Park, Australia (© Photodigitall.nl/Shutterstock)(Bing United Kingdom)

Flatiron Building, New York City (© Tony Shi Photography/Getty Images)(Bing United Kingdom)

South Nahanni River, Nahanni National Park Reserve, Northwest Territories, Canada (© Daryl Benson/Corbis)(Bing United Kingdom)

Marshall Point Lighthouse near Port Clyde, Maine (© Stephen Ippolito/REX)(Bing United Kingdom)