i'm a huge experiential art and sculpture fan
Olafur Eliasson
Probably most famous in the States for his recent 'Waterfalls' in New York....
but he's been incredibly prolific in the past decade - having major exhibitions at Tate Modern, SF MoMA, The Venice Biennalle, The Serpentine Gallery, MoMA etc.
This was one of my favourites
'The Weather Project' at the Tate Modern in London
http://www.google.com/images?hl=en&q...w=1020&bih=542
http://www.olafureliasson.net/works/...r_project.html