More than half a century ago, a Hungarian architect, sculptor and professor invented what would become one of the world's most popular and beloved puzzles whose appeal has spanned generations: the colorful, mind-bending, six-sided Rubik's Cube.

Now, after selling more than half a billion units and becoming a worldwide cultural touchstone, production of the cube is returning to Hungary, where its inventor, Ern Rubik, first conceived of the iconic object that bears his name.

Hungary "is the home of the cube. The cube was born here," Rubik, 82, said on Tuesday at the opening of a new, fully automated Rubik's Cube production line in the Hungarian city of Jszberny.