LONDON.- The new commission for the Fourth Plinth, Powerless Structures, Fig. 101, by artist duo Elmgreen & Dragset, was unveiled today in Londons Trafalgar Square. Commissioned by the Mayor of London and supported by Arts Council England, AlixPartners and Louis Vuitton, the 4.1m high golden bronze sculpture portrays a boy astride his rocking horse. Built in 1841, the Northwest Plinth was originally designed to host a bronze equestrian statue of King William IV by Sir Charles Barry, which was never installed. After more than 170 years, Elmgreen & Dragset have completed the process by presenting a new take on the tradition of equestrian statues, directly engaging with the history of the plinth itself. The child is elevated to the status of a historical hero in line with the existing iconography of the other statues in the square. Instead of acknowledging the heroism of the powerful, however, the work celebrates the heroism of growing up. The image of a young boy astride hi