"Evoke is a massive animated projection that lights up the facade of York Minster in response to the public, who use their own voices to "evoke" colourful light patterns that emerge at the building's foundations and soar up towards the sky, giving the surface a magical feeling as it melts with colour."

While the interactive part is nice, this piece really jumped out at me for the sheer massiveness of the projection, and the colors and shapes that are generated. I like the idea that an entire building can be consumed by light and a projection.
How does such a projection change the viewer's perception of the actual building? How does it change the way the experience and perceive the space around them? Does this make them notice more or less about the built world that surrounds them.

More on the project here