Matthew Maran / Viaduct Bridge and reflected in still water, Hampstead Heath, London, England, UK. September. 2012.

Matthew Maran / The Viaduct Bridge on an icy winter day, Hampstead Heath, London, England, UK.

Chris Mattison / Ribblehead railway viaduct with limestone pavement, Yorkshire Dales, North Yorkshire, England, UK, September 2009

Gary K. Smith / Walkers and cyclists on the Monsal Viaduct, known as the Monsal Trail, Peak District National Park, Derbyshire, England.

Will Watson / Railway viaduct in Worcester during the highest recorded floods, England, UK. 13th February 2014.

Benjamin Barthelemy / Snowy peak in Vercors National Park. France, April 2012.

Nick Upton / Sailing yachts moored in the River Lynher at low tide below St. Germans railway viaduct, Cornwall, UK, June 2012

Kerstin Hinze / Goltzsch Viaduct, the largest brick bridge in the world, seen from the air. Northern Vogtland, Thuringia, Germany, October 2012.

Philippe Clement / Garabit Viaduct, railway arch bridge spanning the River Truyere near Ruynes-en-Margeride, France June 2012

Kerstin Hinze / Aerial view of crossing near Magdeburg of an artificial watercourse/ viaduct bridge crossing the Elbe River. Saxony-Anhalt, Germany, May 2012.

Brent Stephenson / The Otira Viaduct passing through stunnng mountain scenery in the Southern Alps of New Zealand, Otira Gorge, West Coast, New Zealand, November 2010.

Peter Cairns / 2020VISION / View from Arnside Knott towards Arnside viaduct and the Lake District at dawn, Arnside, Cumbria, England, UK, February