The proposal was to create a new, fourth spire on the skyline. The new spire will be illusory, the result of the coincidence of two separate forms to create a spire shaped frame. The two structures will be clad with reflective stainless steel and mirror parts of the surrounding land and skyscapes. The sculpture continually changes with the weather, being sometimes almost invisible. At night, the up-lit structures create a powerful landmark. 'A Spire' is in the form of two bipedal towers, shaped to frame spire forms on the skyline from a variety of viewpoints.