England, North Yorkshire, Yorkshire Dales National Park. Ribblehead Viaduct, a railway viaduct crossing the valley of the River Ribble at Ribblehead.

England, North Yorkshire, Yorkshire Dales National Park. Ribblehead Viaduct, a railway viaduct crossing the valley of the River Ribble at Ribblehead.

England, North Yorkshire, Yorkshire Dales National Park. Ribblehead Viaduct, a railway viaduct crossing the valley of the River Ribble at Ribblehead.

England, North Yorkshire, Yorkshire Dales National Park. Ribblehead Viaduct, a railway viaduct crossing the valley of the River Ribble at Ribblehead.

England, North Yorkshire, Yorkshire Dales National Park. Ribblehead Viaduct, a railway viaduct across the valley of the River Ribble at Ribblehead in the Yorkshire Dales.

England, North Yorkshire, Yorkshire Dales National Park. Ribblehead Viaduct, a railway viaduct across the valley of the River Ribble at Ribblehead in the Yorkshire Dales.

England, North Yorkshire, Yorkshire Dales National Park. Ribblehead Viaduct, a railway viaduct across the valley of the River Ribble at Ribblehead in the Yorkshire Dales, with the peak of Whernside in the distance viewed on a frosty, spring morning.

England, North Yorkshire, Yorkshire Dales National Park. Ribblehead Viaduct, a railway viaduct across the valley of the River Ribble at Ribblehead in the Yorkshire Dales, with the peak of Whernside in the distance viewed on a frosty, spring morning.

England, North Yorkshire, Yorkshire Dales National Park. Ribblehead Viaduct, a railway viaduct across the valley of the River Ribble at Ribblehead in the Yorkshire Dales, with the peak of Whernside in the distance viewed on a frosty, spring morning.

England, North Yorkshire, Yorkshire Dales National Park. Ribblehead Viaduct, a railway viaduct across the valley of the River Ribble at Ribblehead in the Yorkshire Dales, with the peak of Whernside in the distance viewed on a frosty, spring morning.

England, North Yorkshire, Yorkshire Dales National Park. Ribblehead Viaduct, a railway viaduct across the valley of the River Ribble at Ribblehead in the Yorkshire Dales, with the peak of Whernside in the distance viewed on a frosty, spring morning.

England, Northumberland, Lambley Viaduct. Lambley footbridge crossing the River South Tyne as it flows through woodland, viewed from the Lambley Railway Viaduct.

England, Northumberland, Lambley Viaduct. The Lambley Railway Viaduct, built in 1852, spanning the River South Tyne.

England, Northumberland, Lambley Viaduct. The Lambley Railway Viaduct, built in 1852, spanning the River South Tyne.

England, Northumberland, Lambley Viaduct. Lambley footbridge crossing the River South Tyne as it flows through woodland, viewed from the Lambley Railway Viaduct.

England, Northumberland, Lambley Viaduct. Lambley footbridge crossing the River South Tyne as it flows through woodland, viewed from the Lambley Railway Viaduct.

England, Northumberland, Lambley Viaduct. The River South Tyne flowing through a valley of woodland and fields, viewed from the Lambley Railway Viaduct.

England, Northumberland, Lambley Viaduct. The River South Tyne flowing through a valley of woodland and fields, viewed from the Lambley Railway Viaduct.

England, Tyne and Wear, Newcastle Upon Tyne. The Ouseburn running through a disappearing industrial landscape. The 800 metre long Byker Viaduct can be seen in the distance.

England, Tyne & Wear, Derwent Walk Country Park. The impressive Nine Arches Viaduct spanning the River Derwent in the Derwent Walk Country Park.

New Zealand, Westland, Otira Gorge Viaduct. The Otira Gorge Viaduct, a modern example of engineering genius completed in 1999.