Installation art incorporates almost any media to create an experience in a particular environment. Materials used in contemporary installation art range from everyday and natural materials to new media such as video, sound, performance, computers and the internet. Some installations are site-specific in that they are designed to only exist in the space for which they were created.
Crayon Fence: (Don't know who it's by)
Louis Vuitton Fashion Installation Art:
Painted staircase (Don't know who it's by again..):