Strange Tower at Railway Square, Sydney

A view from the ground looking up at a steel tower that stands on top of a concrete structure labelled 'Railway Square'. The tower rises on three girders, with circling, spiralling straps of metal winding through the space between, like mobius strips. At the top of the tower two horizontal circles are joined by metal spikes. They look like a crown of thorns. Perspective makes the tower taper sharply into the sky, which is bright, unbroken blue.