An 'invisible sculpture' consisting of absolutely nothing whatsoever has sold for a ridiculous price at auction.
Modern art can sometimes be a contentious subject, with everything from piles of rubbish to mundane objects selling for whopping great sums simply because such pieces have been defined as 'art'.
Sardinia-born artist Salvatore Garau however has now taken things one step further - perhaps as far as it is possible to go - by presenting and selling an 'invisible sculpture' at auction.
Entitled "I Am", the piece, which fills an area of totally empty space measuring 150x150cm, is literally nothing at all, with the only physical component being the owner's certificate of authenticity.
And the price for this piece of absolutely nothing whatsoever ? $18,300.