The Fehmarn Sound Bridge (pictured) is a feat of engineering in which European country?

This much-photographed link between the North German mainland and the small island of Fehmarn was constructed between 1958 and 1963.

Almost 100 metres long, this network arch bridge spans the Baltic Sea with both a road and a rail link. It was designed by the engineers Fischer, Jahnke, and Stein, and the involvement of the eminent architect Gerd Lohmer in the design has also led to it being acknowledged as a beautiful work of engineering.

Given its position in a popular holiday area, it is vital for the tourist industry but also plays an important role in trade, as it expedites the passage of goods from Germany to the Scandinavian countries.

It must not be forgotten that in Cold War times, the bridge was not that far from the Iron Curtain, and this is reflected in the fact that six explosive vaults were bored in the approach road, in the hope of delaying an invasion. These have long since ceased to be functional, but evidence of them is still clearly visible.

In 1999, the regional government of Schleswig-Holstein declared the bridge a historic monument - which has also led to some conflict over the long-discussed tunnel planned to supplement it.