Over the past four years the 'empty' fourth plinth in the Northwest corner of Trafalgar Square has featured works by Marc Quinn, Thomas Schutte, Anthony Gormley and the current commission Yinka Shonibare's Nelson's Shop in a Bottle. You can see six new ideas for the next Fourth Plinth commission here.
Image: Katharina Fritsch's Hahn/Cock, shortlisted for the Fourth Plinth commission, Trafalgar Square, London