BING PICTURES

Hollow Tree on Maits Rest Rainforest Walk, Great Otway National Park, Victoria (© Jamie Lamb - elusive-images.co.uk/Getty Images)(Bing Australia)

Isola Bella, Lake Maggiore, Piedmont, Italy (© Massimo Ripani/eStock Photo)(Bing Australia)

White-tailed doe and fawn in Wisconsin (© Karel Bock/Shutterstock)(Bing Australia)

Oyster farm offshore from Notojima Island, Ishikawa Prefecture, Japan (© divedog/Shutterstock)(Bing Australia)

Former lifeguard station on the island of Rügen, Mecklenburg-Western Pomerania, Germany (© DR pics/Shutterstock)(Bing Australia)

Young humpback whale giving its mother a hug off the coast of Tonga (© Biosphoto/Alamy)(Bing Australia)

Infinity Bridge in Stockton-on-Tees, England (© Robert Smith/Alamy)(Bing Australia)

Lassen Peak in Lassen Volcanic National Park, California, USA (© Engel Ching/Shutterstock)(Bing Australia)

Lion cubs hiding in tall grass in the Kalahari Desert of Botswana (© Jami Tarris/Getty Images)(Bing Australia)

Bioluminescent sea fireflies along the shore of Okayama, Japan (© tdub_video/Getty Images)(Bing Australia)

Fossil skeleton of Tyrannosaurus rex (© Corbin17/Alamy)(Bing Australia)

Window arch at Loch Ard Gorge at dawn, Port Campbell National Park, Victoria (© David Noton/Minden Pictures)(Bing Australia)

The whirlpool in Myllykoski scenic area at winter in Oulanka National Park, Kuusamo, Finland (© Lassi Rautiainen/Minden Pictures)(Bing Australia)

Caves and coastal features at low tide on the Bay of Fundy, near St. Martins, New Brunswick, Canada (© Jamie Roach/Shutterstock)(Bing Australia)

An adult burrowing owl emerges from its burrow at sunset in Davis, California, USA (© Neil Losin/Tandem Stills + Motion)(Bing Australia)

Borobudur in Central Java, Indonesia (© Oleh Slobodeniuk/Getty Images)(Bing Australia)

Enlighten Canberra Festival 2012 at Questacon - National Science and Technology Centre, ACT (© Photoholgic/shutterstock)(Bing Australia)

A group of curious Emperor penguins in Antarctica (© Mint Images Limited/Alamy)(Bing Australia)

The Highlands of Iceland (© Kevin Krautgartner/Offset by Shutterstock)(Bing Australia)

Multicoloured lobster buoys, Acadia National Park, Maine, USA (© Cheri Alguire/Shutterstock)(Bing Australia)

Urquhart Castle and Loch Ness in the Scottish Highlands (© AWL Images/Danita Delimont)(Bing Australia)

Stars reflecting in Totensee, a mountain lake at Grimsel Pass, Kanton Bern, Switzerland (© magodevita/Getty Images)(Bing Australia)

The Caño Cristales river in the Serranía de la Macarena mountains of Colombia (© Jorge Iván Vásquez Cuartas/Getty Images)(Bing Australia)

Sailing stone at Racetrack Playa in Death Valley National Park, California (© Patrick Walsh/Getty Images)(Bing Australia)

Wildflowers in the southern region of Flinders Ranges National Park, South Australia (© Southern Lightscapes-Australia/Getty Images)(Bing Australia)