Books by Hans Christian Andersen (© radiokafka/Adobe Stock)(Bing Australia)

Milky way over the Bisti/De-Na-Zin Wilderness in New Mexico (© Cory Marshall/Tandem Stills + Motion)(Bing Australia)

For Earth Month, a symmetrical forest known as a Nelder Plot (© Rachid Dahnoun/Tandem Stills + Motion)(Bing Australia)

For Earth Month, a symmetrical forest known as a Nelder Plot (© Rachid Dahnoun/Tandem Stills + Motion)(Bing Australia)

Blossoming cherry trees at a tea plantation in Longyan, China (© VCG/Getty Images)(Bing Australia)

Blue quandongs and colourful leaves on subtropical rainforest floor, Currumbin Creek Valley (© Auscape/UIG via Getty Images)(Bing Australia)

For International Beaver Day a beaver swimming in Grand Teton National Park (© Charlie Hamilton James/Getty Images)(Bing Australia)

The National Wallace Monument overlooking Stirling in Scotland (© Elena Korchenko/age fotostock)(Bing Australia)

Bioluminescent algae along the shores of the Matsu Islands off the coast of Taiwan (© Wan Ru Chen/Getty Images)(Bing Australia)

For Siblings Day, lion cubs wrestle in Samburu National Park, Kenya (© Mark C. Ross/Getty Images)(Bing Australia)

Alpine eucalypt bark in Tasmania (© Australian Scenics/Getty Images)(Bing Australia)

The Mount Washington Observatory in New Hampshire (© Mike Theiss/Getty Images)(Bing Australia)

Vinyl records in Rosmalen, The Netherlands (© DutchScenery/Shutterstock)(Bing Australia)

Bauhaus Archive Museum of Design in Berlin, Germany (© Juergen Henkelmann Photography/Alamy)(Bing Australia)

Hope Valley, Peak District, England (© Daniel_Kay/Getty Images Plus)(Bing Australia)

Dubai Miracle Garden, United Arab Emirates (© Amazing Aerial/Offset)(Bing Australia)

Paepalanthus flowers at sunset, Chapada dos Veadeiros National Park, Brazil (© Marcio Cabral/Getty Images)(Bing Australia)

Autumn colours in New England, New South Wales (© ILYA GENKIN/Alamy Stock Photo)(Bing Australia)

A rabbit in the grass (© wisan224/Getty Images Plus)(Bing Australia)

Laysan albatross chick on Midway Atoll, Hawaiian Leeward Islands (© Jaymi Heimbuch/Minden Pictures)(Bing Australia)

At Casa Batlló for Saint Jordi’s Day in Barcelona, Spain (© Jon Arnold Images Ltd/Alamy)(Bing Australia)

The Quinault Rainforest in Olympic National Park, Washington (© Jason Savage/Tandem Stills + Motion)(Bing Australia)

Australian National War Memorial, Canberra (© craighind/iStock Editorial/Getty Images Plus)(Bing Australia)

Hummingbird near blooming aloe vera in Laguna Beach, California (© Aurora Photos/Offset)(Bing Australia)

Dawn in the vineyards near Margaret River, Australia (© Nick Rains/Corbis NX/Getty Images)(Bing Australia)

Prairie and pinnacles near Castle Trail in Badlands National Park, South Dakota (© Danita Delimont/Getty Images)(Bing Australia)

Newborn brown-throated sloth with mother, Sloth Sanctuary of Costa Rica (© Suzi Eszterhas/Minden Pictures)(Bing Australia)

Louis Armstrong performs with bandmates in Vienna, Austria, on February 22, 1959 (© Franz Hubmann/Getty Images)(Bing Australia)

Wisteria blooms at Kawachi Fuji Gardens in Kitakyushu, Japan (© Wibowo Rusli/Alamy)(Bing Australia)