Guy Edwardes / Aurora Borealis over Sycamore Gap, Hadrian's Wall, Northumberland, England. February 2014

Ross Hoddinott / 2020VISION / Tarr Steps, medieval clapper bridge crossing the River Barle, Exmoor National Park, Somerset, UK. May 2012

Kirkendall-Spring / Puako Petroglyphs near the Holoholokai Beach Park on the South Kohala area of the Big Island. The Big Island of Hawaii, USA, December 2008

Jeff Vanuga / Historic Barn illuminated at night by the light of a full moon, Mormon Row, Grand Teton National Park, Wyoming, USA, May 2009

Rob Tilley / Rock engravings of the native american Pueblo people, Chaco Culture National Historical Park, New Mexico, USA, February 2009

Graham Eaton / View towards Cribyn from Pen y Fan in the Brecon Beacons National Park, Wales, September. The outcrops of Devonian age, Old Red Sandstone forms escarpments carved by glaciers during the last ice age.

Guy Edwardes / Aurora Borealis over Sycamore Gap, Hadrian's Wall, Northumberland, England. February 2014

Ashley Cooper / La Calahorra Castle in La Calahorra at the foot of the Sierra Nevada mountains in Andalucia, Spain,

Ashley Cooper / La Calahorra Castle in La Calahorra with spring flowers, at the foot of the Sierra Nevada mountains in Andalucia, Spain.

Alan Williams / Dolwyddelan Castle, mountain fortress remains, near Dolwyddelan, Snowdonia National Park, North Wales, UK. December 2017.

Michel Roggo / View of Xiong Mao Hai (Panda Lake), Jiuzhaigou National Park, Jiuzhaigou Valley Scenic and Historic Interest Area, Sichuan, China. May 2013 . Photographed for The Freshwater Project

Michel Roggo / Prayer flags in Zechawa Village, Jiuzhaigou National Park, Jiuzhaigou Valley Scenic and Historic Interest Area UNESCO World Heritage Site, Sichuan, China. May 2013 . Photographed for The Freshwater P...