7- Rubik’s Cube -350 million
With a large fan base among young and old, the Rubik’s cube wasn’t originally intended to be a toy.
It was invented by a Hungarian architecture professor, Erno Rubik, in 1974. It was another way for him to teach his students three-dimensional geometry.
The Rubik’s cube remains the top-selling single toy of all time with 350 million cubes sold since 1980.
And it’s also one of the most popular toys that wasn’t supposed to be a toy.
The combined collections of Mattel’s Barbie dolls and Hot Wheels have both outsold the Rubik’s Cube, but none of them have as a single toy.
