At the Mathematical Institute of the University of Oxford.
Call me geeky but ... this is the most beautiful expanse of tiling ever: a tessellating but non-repeating pattern of tiles constructed from two types of granite with arcs of stainless steel between them. Named after the British mathematician, Roger Penrose, who developed them.
Constructive criticism very much appreciated - keen to learn more and improve. I bought a decent camera in February 2016 and joyed this wonderful space...
