Alex Mustard / A diver explores Silfra Canyon, a deep fault filled with fresh water in the rift valley between the Eurasian and American tectonic plates at Thingvellir National Park, Iceland. May 2011. In this phot...

Guy Edwardes / Calm sea with St Mary's Lighthouse in distance, Whitley Bay, Tyne and Wear, England, UK, February 2008.

Gavin Hellier / Aerial view tracking over Lake Ashinoko and Hakpne Shrine, with Mount Fuji in the distance, passes a galleon sailing on the lake, Fuji-Hakone-Izu National Park, Hakone, Shizuoka, Honshu, JapanNovember...

Christophe Courteau / Ostriches (Struthio camelus) running in the distance in a mirage, Sossusvlei, Namib-Nauckluft National Park, Namib Desert, Namibia.

Denis-Huot / Masai giraffe (Giraffa camelopardalis tippelskirchi) in distance silhouetted at sunrise with clouds, Masai-Mara Game Reserve, Kenya. September.

Pal Hermansen / Artwork 'Give colours to the food-desert' by by Benedicte Lyssand. Purple tansy (Phacelia tanacetifolia) planted in corrected perspective of stripes 2m in foreground 7m in distance. Valer, Ostfold Cou...

Laurent Geslin / European edible frog (Rana esculenta) in urban park, next to pond with buildings in distance, Grenoble, France, May.

Floris van Breugel / Sunset on the outer coast of Chichagof Island with the White Sulphur Hotsprings in the distance, South East Alaska, USA, July

Floris van Breugel / Sunrise over Mt Morrison in the far distance, near Convict Lake, Sierra Nevada, California, USA January

Wim van den Heever / Quiver tree (Aloe dichotoma) with the Milky Way at night, and light pollution from town in the distance, Keetmanshoop, Namibia. Colours accentuated digitally.

Wim van den Heever / Quiver tree (Aloe dichotoma) with the Milky Way at night, and light pollution from town in the distance, Keetmanshoop, Namibia. Colours accentuated digitally.

Wim van den Heever / Quiver tree (Aloe dichotoma) with the Milky Way at night, and light pollution from town in the distance, Keetmanshoop, Namibia. Colours accentuated digitally.