Gravelly Hill Interchange, or more familiarly and affectionately known as Spaghetti Junction, forms part of the urban landscape of north and central Birmingham and consists of 559 concrete columns as high as 80 metres. Often considered the most complicated road system in Britain, construction started in 1968 and work finished in 1972. It was a Birmingham Evening Mail journalist who coined the name Spaghetti Junction, as it is known as today, and an average of 210,000 vehicles use it every single day.