Monument to the Unknown Artist

The lowdown

Standing on a plinth near Tate Modern is a statue of an artist striking a heroic pose, but it has a surprising trick. Created by the art group Greyworld and titled Monument to the Unknown Artist, it uses hidden cameras and motors so that, when it is running, it detects the movements of people in front of it and mimics their poses back at them.

Strike a pose and the statue may copy you, turning a passer-by into an unwitting performer. It is a witty comment on art, fame and the figures we put on pedestals. It is free to encounter, a genuinely delightful surprise on a riverside busy with Tate Modern crowds.