Exterior shot of a metal, cage-like structure. Behind the steel bars are curved slabs of concrete, forming a spiral staircase. Oak Way, Green Park, Reading, Berkshire, UK. Photo by Gearóid Burke.

A monotone image with a series of overlapping curved slabs winding around a central point. The structure is enclosed in a steel cage, and cars are parked behind it. A concrete spiral staircase, Oak Way, Green Park, Reading, Berkshire, UK. Photo by Gearóid Burke.

A monotone image with a sequence of overlapping curved slabs fanning outward. Looking up at a concrete spiral staircase. Oak Way, Green Park, Reading, Berkshire, UK. Photo by Gearóid Burke.

A monochromatic photograph taken under a concrete walkway of a spiral staircase. The curved slabs of the stairs seem to form their own central column. Steel bars form a circular cage around the structure. Cars are parked to the right, and on the left is a building with the same style of staircase. Oak Way, Green Park, Reading, Berkshire, UK. Photo by Gearóid Burke.