10 ms·

The CS building in Carleton College has them in the lobby: http://www.tilexdesign.com/portfolio/detail.cfm/C/328/Carleton_College http://www.tilexdesign.com/po

• qurashee 9y ago
  The Oxford Mathematical Institute has one just outside the entrance. We also have Penrose himself though :P More info: https://www.maths.ox.ac.uk/about-us/life-oxford-mathematics/oxford-mathematics-alphabet/aperiodic-tiles https://www.maths.ox.ac.uk/about-us/life-oxford-mathematics/... http://www.maths.ox.ac.uk/node/865 http://www.maths.ox.ac.uk/node/865