Lantern display celebrating the Mid-Autumn Festival in Singapore (© Khin/Getty Images)(Bing United Kingdom)

Yuncheng Salt Lake in Yuncheng, Shanxi Province, China (© Xinhua/Alamy)(Bing United Kingdom)

Oyster mushrooms in Belgium (© Philippe Clement/Minden Pictures)(Bing United Kingdom)

Aerial photograph over Whitehall and St James's Park, London (© Howard Kingsnorth/Getty Images)(Bing United Kingdom)

Emperor penguin adults and chicks at the Snow Hill Island rookery, Antarctica (© Martin Ruegner/Getty Images)(Bing United Kingdom)

Montage of images of Jupiter and its volcanic moon Io (© Nasa/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute/Goddard Space Flight Center)(Bing United Kingdom)

Autumn mist above Restormel Castle in Cornwall (© Robert Harding/Alamy)(Bing United Kingdom)

Blanket octopus in Palm Beach, Florida, USA (© Steven Kovacs/Minden Pictures)(Bing United Kingdom)

View towards the Church of Saint-Cirq-Lapopie, Lot Valley, south-west France (© Reinhard Schmid/Huber/eStock Photo)(Bing United Kingdom)

Aerial view of American flamingos flying over Los Roques Archipelago National Park, Venezuela (© Cristian Lourenco/Getty Images)(Bing United Kingdom)

Geghard Monastery, Armenia (© traumlichtfabrik/Getty Images)(Bing United Kingdom)

Red fox in the Netherlands (© Wim Weenink/Minden Pictures)(Bing United Kingdom)

Poenari Castle on Mount Cetatea, Făgăraș Mountains, Romania (© porojnicu/Getty Images)(Bing United Kingdom)

Dragonfly fossil, about 150 million years old, in Solnhofen, Bavaria, Germany (© Ingo Arndt/Minden Pictures)(Bing United Kingdom)

Ochre sea star on kelp off the coast of California, USA (© Ralph Pace/Minden Pictures)(Bing United Kingdom)

Snowy Norway spruce forest at sunset, Thuringia, Germany (© Frank Sommariva/ImageBROKER/Offset by Shutterstock)(Bing United Kingdom)

View of Pisgah National Forest near Brevard, North Carolina, USA (© Adam Jones/Danita Delimont)(Bing United Kingdom)

View of the harbour in Sitka, Alaska, USA (© Blaine Harrington III/Alamy)(Bing United Kingdom)

The Mati Si (Horse's Hoof Temple) and grottoes of Mati Si Scenic Area, Gansu province, China (© Ana Flašker/Alamy)(Bing United Kingdom)

Hazel dormouse (Muscardinus avellanarius) hibernating (© Avalon/Photoshot License/Alamy Stock Photo)(Bing United Kingdom)

Chameleon walking on a plant, Indonesia (© SnapRapid/Offset by Shutterstock)(Bing United Kingdom)

Starlings flock over Lauwersmeer National Park, Netherlands (© Frans Lemmens/Alamy)(Bing United Kingdom)

Old general store of Bents, Saskatchewan, Canada (© ImagineGolf/Getty Images)(Bing United Kingdom)

United Nations headquarters, New York, USA (© Sean Pavone/Alamy)(Bing United Kingdom)

Grizzly bear cub relaxing, Lake Clark National Park, Alaska, USA (© Erlend Krumsvik/Getty Images)(Bing United Kingdom)

Corfe Castle, Dorset (© Ross Hoddinott/Minden Pictures)(Bing United Kingdom)

A pumpkin patch in British Columbia, Canada (© James Chen/Shutterstock)(Bing United Kingdom)

Grotesques of native Ecuadorian seabirds on the Basílica del Voto Nacional in Quito, Ecuador (© Henri Leduc/Getty Images)(Bing United Kingdom)

Mazezilla corn maze at Klingel's Farm in Pennsylvania, USA (© Alex Potemkin/Getty Images)(Bing United Kingdom)

Blakiston's fish owl in Hokkaido, Japan (© Martin Bailey/Offset by Shutterstock)(Bing United Kingdom)

Dark Hedges in County Antrim (© VanderWolf Images/Shutterstock)(Bing United Kingdom)