A young boy builds blocks during the exhibition of "Beyond Rubik's Cube" at Global Harbor Museum in Shanghai, east China, Feb. 8, 2017. Cube inventor Erno Rubik himself also took part in the preparation of the three-month exhibition, which will open till Feb. 26. The cube was invented by Hungarian Erno Rubik, who set out to create a model to explain three dimensional geometry. (Xinhua/Pei Xin)
