One of the most striking features at this year’s London Design Festival has been architect John Pawson’s installation inside St Paul’s cathedral. The striking old landmark has opened its doors to the festival for the first time, as Pawson, working alongside Swarovski, has suspended a huge lens into the building’s rarely seen Geometric Staircase.

The installation, fittingly named Perspectives, involves what is the largest lens possible to manufacture and adorns the space, providing a stunning view as the spherical convex mirror warps 23m of staircase. The perspective has never before been seen by a human eye and promises to display Christopher Wren’s architecture in a truly unique light as it goes into its tercentenary year.

The project is part of the Swarovski Crystal Palace project, a creative initiative attempting to create innovative ways of changing the dynamic of cut crystals with light. The exhibit runs through until mid January next year.