Thyamis River near Ioannina, Greece (© Hercules Milas/Alamy)(Bing United Kingdom)
Aerial view of the International Fountain, Seattle, Washington, USA (© Harald Sund/Getty Images)(Bing United Kingdom)
Rocca Guaita (first tower) in Borgo Maggiore, Republic of San Marino (© SIME/eStock Photo)(Bing United Kingdom)
Frying Pan Lake in the Waimangu Volcanic Rift Valley, New Zealand (© Uli Hamacher/Getty Images)(Bing United Kingdom)
California sea lions off Anacapa Island, Channel Islands National Park, California, USA (© Ian Shive/Tandem Stock)(Bing United Kingdom)
Close up of a red stag in the Scottish Highlands (© gmsphotography/Getty Images)(Bing United Kingdom)
Aerial view of Castello Maniace in Syracuse, Sicily, Italy (© Antonino Bartuccio/SIME/4Corners)(Bing United Kingdom)
Chrysanthemum flower, green Anastasia variety (© Tom Joslyn/age fotostock/SuperStock)(Bing United Kingdom)
Starling flock at dusk (© Martin Woike/Corbis)(Bing United Kingdom)
Buerjin Yadan landform, China (© WanRu Chen/Flickr/Getty Images)(Bing United Kingdom)
The sun peeks through Mesa Arch in Canyonlands National Park, Utah, USA (© Zev Yanovich)(Bing United Kingdom)
Dales Gorge and Circular Pool, Karijini National Park, Australia (© Tomasz Makarewicz/360cities.net)(Bing United Kingdom)
England, Somerset, Bath, Royal Crescent (© Davis McCardle/Getty Images)(Bing United Kingdom)
Chand Baori stepwell in Abhaneri, India (© Tilak Haria/Getty Images)(Bing United Kingdom)
Orange corridor, San Jose del Cabo, Mexico (© Jeremy Woodhouse/Aurora Photos)(Bing United Kingdom)
Sandhill cranes flying, Bosque del Apache National Wildlife Refuge, New Mexico, USA (© Patrick Frischknecht/Aurora Photos)(Bing United Kingdom)
Red fox, Chukotka region, Russia (© Ivan Kislov/In cooperation with 500px)(Bing United Kingdom)
Time-lapse exposure of the night sky above Bromo Tengger Semeru National Park in East Java, Indonesia (© Weerapong Chaipuck/In cooperation with 500px)(Bing United Kingdom)
Bridge over Sylvenstein Lake in Upper Bavaria, Germany (© Gavin Hellier/In cooperation with 500px)(Bing United Kingdom)
Magnificent tree frog in Drysdale River National Park, Australia (© Thomas Marent/Corbis)(Bing United Kingdom)
A grey squirrel Sciurus carolinensis at Tehidy woods, Cornwall, England (© James Clews/Alamy)(Bing United Kingdom)
Mount Shasta, California, USA (© Nagesh Mahadev)(Bing United Kingdom)
Seudre River in the Charente-Maritime department of France (© Francis Leroy/Corbis)(Bing United Kingdom)
Autumn foliage, Schoenbrunn Palace, Vienna, Austria (© Zoonar GmbH/Alamy)(Bing United Kingdom)
Marine City in the Haeundae district of Busan, South Korea (© Getty Images)(Bing United Kingdom)
California ground squirrels at Seal Rock on 17-Mile Drive on the Monterey Peninsula, California, USA (© Eric Lovelin)(Bing United Kingdom)
Lava rock pools at the southern end of Lake Turkana, in Kenya (© Nigel Pavitt/Corbis)(Bing United Kingdom)
A goat on the castle rocks in Myrina, on the isle of Lemnos, Greece (© Ashley Cooper/Corbis)(Bing United Kingdom)
Balanced rocks in Guadalupe Mountains National Park, Texas, USA (© Minden Pictures/SuperStock)(Bing United Kingdom)