Ouzel Lake in North Cascades National Park, Washington state (© Ethan Welty)(Bing Australia)

Monarch butterflies in Michoacán, Mexico (© Alejandro Prieto/Minden Pictures)(Bing Australia)

Close-up of a storm on Jupiter from the Juno spacecraft (© NASA/JPL-Caltech/SwRI/MSSS/Gerald Eichstadt/Sean Doran)(Bing Australia)

For Smile Day, a common octopus (© blickwinkel/Alamy)(Bing Australia)

Apple tree on Salt Spring Island in British Columbia, Canada (© Radius Images/Offset)(Bing Australia)

Performers at the 26th Human Tower Competition in Tarragona, Spain (© Xinhua/Pau Barrena/Getty Images)(Bing Australia)

Milky Way over Murray River (© Ben Goode/Tandem Stills + Motion)(Bing Australia)

Albuquerque International Balloon Fiesta runs until October 14 (© Blaine Harrington III/Alamy)(Bing Australia)

Hubble Space Telescope’s view of Saturn (© NASA)(Bing Australia)

Schoolgirls in Fort Kochi, Kerala, India (© imageBROKER/Alamy)(Bing Australia)

Replica of Lascaux cave paintings at the International Centre for Cave Art in Montignac, France (© Caroline Blumberg/Epa/Shutterstock)(Bing Australia)

The Bode Museum during the Festival of Lights (© fhm/Getty Images)(Bing Australia)

Dawn redwoods in a lake at Zimaling Park, Zhongshan, China (© Yaorusheng/Getty Images)(Bing Australia)

An oxpecker sits on an African buffalo in Maasai Mara National Reserve, Kenya (© Susan Portnoy/Offset)(Bing Australia)

Portland, Maine (© CFW Photography/Getty Images)(Bing Australia)

Icebergs on Mendenhall Lake near Juneau, Alaska (© John Hyde/age fotostock)(Bing Australia)

Valletta, Malta, one of Europe’s capitals of culture for 2018 (© Adrian Malanca/Getty Images)(Bing Australia)

Sydney Olympic Park Games Memories (© Nigel Killeen/Moment Mobile/Getty Images)(Bing Australia)

Studio Festi performs during Festival Internacional Cervantino in Guanajuato, Mexico (© Hector Vivas/Getty Images)(Bing Australia)

A common wombat at Point Lesueur on Maria Island in Tasmania, Australia (© Posnov/Getty Images)(Bing Australia)

Rainbow lorikeet group in umbrella tree, Atherton Tableland, Queensland (© Konrad Wothe/Minden Pictures)(Bing Australia)

Dove art installation above the Piazza del Duomo in Amalfi, Italy (© LatitudeStock – TTL/Getty Images)(Bing Australia)

Château Gaillard, a 12th-century fortress in the Seine Valley, France (© Francis Cormon/age fotostock)(Bing Australia)

Sunset on Cape Breton Island, Nova Scotia, Canada (© Mike Grandmaison/Alamy Stock Photo)(Bing Australia)

A corn maze in Petaluma, California (© Gallery Stock)(Bing Australia)

A statue in the Gardens of Versailles in France (© Lindsay Daniels/Tandem Stills + Motion)(Bing Australia)

A pumpkin patch in Columbia County, Pennsylvania (© Beck Photography/Aurora Photos)(Bing Australia)

Common pipistrelle bat for Bat Appreciation Month (© Mario Cea Sanchez/Minden Pictures)(Bing Australia)

Theatre of lost souls (© Getty | Shutterstock)(Bing Australia)

Honeycomb weathering in Koolama Bay, Northwest Australia (© Ralph Lee Hopkins/Shutterstock/Offset)(Bing Australia)