I had to look up the Fourth Plinth. It is an empty statue base in Trafalgar Square, London. It is presently used for temporary displays of artworks. http://en

I had to look up the Fourth Plinth. It is an empty statue base in Trafalgar Square, London. It is presently used for temporary displays of artworks. http://en.wikipedia.org/wiki/Fourth_plinth,_Trafalgar_Square http://en.wikipedia.org/wiki/Fourth_plinth,_Trafalgar_Square