Standing in the centre of Ploschad Prechistenskie Vorota opposite to Kropotkinskaya metro station is a statue of Friedrich Engels - the German philosopher and translator who, along with Karl Marx, is one of the founders of Communism.  The monument was unveiled in 1976 and depicts the philosopher deep in thought with his arms crossed standing on a small pedestal.  In the 1990s there were calls to have the statue removed, but it was saved on the orders of the then-mayor Yuri Luzhkov.