The Millau Bridge in France is the tallest bridge in the world, with a roadway so tall a 770ft skyscraper could fit underneath it - and it's a must-see for petrolheads ...

And yet, the Coronado Bridge remains distinct from its counterparts, due in part to its curved shape. Why is it like that?

At night, lights pick out the graceful curve of the four great cables, each three feet in diameter, spun from enough steel wire to reach more than halfway to the moon. The bridge thrums with the ...

Instead of pushing straight down, the weight of an arch bridge is carried outward along the curve of the arch to the supports at each end. These supports, called the abutments, carry the load and ...