Before reaching the very top, inside the blacked out dome structure, London-based artist Keiichi Matsuda installed Prism, a giant sculpture installation made from paper. Each one of its 47 colorful facets displayed a projected data stream that communicated information about the city outside. Kiichi explained, “I can now understand and read the Prism enough to be able to tell you what the conditions are like outside, it’s probably fairly windy, there are very few Boris bikes available for hire, which would imply that there’s no rain.”  London Design Festival 2012 by Ali Morris