The World Of Bridges

High above the Valley: France (1x7)

Air date: Mar 13, 2020

Bridges that soar over broad valleys demand special talents from their designers and engineers. The Millau Viaduct in the south of France is one of the highest bridge structures in the world while the Pontcysyllte Aqueduct, which stands high over the River Dee in north-east Wales, was built in the 19th century.