THIS is the fascinatingstory of the most expensive Rubik's cube in the world.TheMasterpiece Cube is valued at just over £2 million ... it has six sides of different colours in a 3x3 grid of stickers.

After 25 years, the cube is coming home. Hundreds of competitors are meeting for the fourth Rubik's Cube world championship Friday in the Hungarian capital, which hosted the first such event in 1982.