This stunning piece of artwork erected by South African artist Marco Cianfanelli, stands on the spot where Nelson Mandela was arrested 50 years ago. The monument is constructed out of 50 separate steel bars to represent 50 years since the capture.
One Way Colour Tunnel by Olafur Eliasson. This is a tunnel made up of light-shattering translucent and reflective triangular panels of coated acrylic, iresembling a walkway of stained glass. This is at the San Francisco Museum of Modern Art.