A remarkable site specific installation by Korean artist Kimsooja titled "To Breathe - The Mirror Woman" could be found at the Crystal Palace in Madrid in 2006. The palace was built in the 1880's to house a collection of flora and fauna from the Philippines, but the artist transformed it into a multi-sensory light and sound experience.
A special translucent diffraction film was used to cover the windows to create an array of naturally occurring rainbows, which were reflected by a mirrored surface covering the entire floor area.
An audio recording of the artist breathing was played throughout the space to create what must have been a memorable experience.
