1 / 4   A pedestrian traffic light featuring German philosopher Karl Marx has appeared in Trier, southwestern Germany, in celebration of the 200th anniversary of his birth. /VCG Photo

2 / 4   The influential communist thinker was born in the city on May 5, 1818, and spent his first 17 years in the city. /VCG Photo

3 / 4   Celebrations have been held across the world leading up to the anniversary. /VCG Photo

4 / 4   Trier, Marx's hometown, is expected to receive a special gift from China: A huge bronze statue of Marx, which will be officially unveiled on Saturday. /VCG Photo