Fehmarnbeltconnection
Construction of the world's longest immersed tunnel has begun. The 18 km-long combined road and rail tunnel between Germany and Denmark will be 9 metres high and 43 metres wide and will promote trade and tourism in northern Europe. A factory is being built on the Danish side for the 200-metre-long precast concrete tunnel elements, which will be immersed to form the permanent link between Denmark's Lolland Falster region and the German state of Schleswig-Holstein.