A view of the River Tamar at Calstock, with a railway viaduct crossing it, on the Devon-Cornwall border, Cornwall, England, United Kingdom, Europe

A view of the River Tamar at Calstock, with a railway viaduct crossing it, on the Devon-Cornwall border, Cornwall, England, United Kingdom, Europe

The viaduct over the River Tamar at Calstock, Devon, England, United Kingdom, Europe

A railway viaduct across the River Tamar, at Calstock, on the Devon-Cornwall border, in east Cornwall, England, United Kingdom, Europe

Dawn sky behind Brunel's Royal Albert Bridge and the Tamar Bridge in spring, Saltash, Cornwall, England, United Kingdom, Europe

The Tamar Bridges, across the Hamoaze, estuary of the River Tamar, at Saltash, near Plymouth, Cornwall, England, United Kingdom, Europe

Sunrise over the Royal Albert Bridge which spans the River Tamar in Saltash, Cornwall, England, United Kingdom, Europe

Calstock railway viaduct, Tamar Valley, Cornwall, England, United Kingdom, Europe

Calstock and railway viaduct over the River Tamar, Cornwall, England, United Kingdom, Europe

Saltash railway bridge over River Tamar, built by Brunel, Cornwall, England, United Kingdom, Europe

Railway viaduct across the Tamar River, with twelve arches, built in 1908, Calstock, Cornwall, England, United Kingdom, Europe

Royal Albert Bridge and Tamar Bridge with river Tamar against Saltash riverside from Saltash Passage, Plymouth, between Cornwall and Devon, England, United Kingdom, Europe

Tamar Bridge, Plymouth, between Cornwall and Devon, England, United Kingdom, Europe

Royal Albert Bridge and river Tamar against Saltash riverside, Saltash Passage, Plymouth, between Cornwall and Devon, England, United Kingdom, Europe

Railway viaduct across the Tamar River, with twelve arches, built in 1908, Calstock, Cornwall, England, United Kingdom, Europe

Tamar Bridge, Normandy Hill, Plymouth, between Cornwall and Devon, England, United Kingdom, Europe