Olafur Eliasson's awesome ability to combine art, science, and natural phenomena has created an extraordinary collection of multi-sensory projects. Created with the observer in mind,?Eliasson?engages viewers with tangible elements like smells, texture, temperature, moisture, color, and light.
Source: Olafur Eliasson
This particular piece, the One-Way Color Tunnel uses a kaleidoscopic like effect in the shape of a tunnel. The tunnel envelops the San Francisco Museum of Modern Art's steel truss bridge with light, color, and glass. Too bad all tunnels don't look like this, that morning walk through the subway would be much more appealing.
Source: Olafur Eliasson
Source:
http://www.lightpublic.com/lighting-articles/the-one-way-color-tunnel-by-olafur-eliasson/