In the heart of England, where motorways snake and twist through Birmingham, there lies a structure that transcends the ordinary into the extraordinary. Its official name is the Gravelly Hill Interchange, but to the millions who traverse it, to those who marvel at its intricate design, and those who swear at missing their turning, it is simply known as Spaghetti Junction. Its beauty is terrible to behold, like the Angels of old, and is truly Ballardian. More than a mere motorway interchange, Spaghetti Junction is, in many ways, the greatest piece of post-modern art. Ever.