Christophe Courteau / Solitary African elephant bull {Loxodonta africana} in swamp. Okavango delta, Botswana

Jack Dykinga / Lichen covered rocks at Marble Viewpoint, Kaibab National Forest, Grand Canyon National Park, Arizona, USA

Jack Dykinga / Lichen covered rocks at Marble Viewpoint, Kaibab National Forest, Grand Canyon National Park, Arizona, USA

Kirkendall-Spring / Bandon beach from Face Rock Viewpoint at sunset Oregon, USA, June 2012

Floris van Breugel / Sunrise over the Grand Canyon at the North Rim's Toroweap / Tuweep viewpoint in Arizona, USA. July 2010.

Philippe Clement / Viewpoint with sign depicting a Red kite (Milvus milvus) for watching birds of prey at the Col du Soulor, Hautes-Pyrenees, Pyrenees, France, June 2012

Alex Hyde / Clump of Snowdrops (Galanthus nivalis) flowering in woodland, seen from low viewpoint. Near village of Alport, Peak District National Park, Derbyshire. March

Oriol Alamany / Pehoe Lake and the mountains of Torres del Paine from the Condor viewpoint, Torres del Paine National Park, Patagonia, Chile

Terry Whittaker / 2020VISION / People birdwatching from Joist Fen viewpoint, Lakenheath Fen RSPB Reserve, Suffolk, UK, May 2011

Terry Whittaker / 2020VISION / People bird watching from Joist Fen viewpoint, Lakenheath Fen RSPB Reserve, Suffolk, UK, May 2011

Terry Whittaker / 2020VISION / People birdwatching from Joist Fen viewpoint, Lakenheath Fen RSPB Reserve, Suffolk, UK, May 2011

Oriol Alamany / Pehoe Lake with the Hosteria Pehoe and the mountains of Torres del Paine from the Condor viewpoint, Torres del Paine National Park, Patagonia, Chile, January 2006