Imaginary Rubik's Cube

The Imaginary Rubik's Cube is a Rubik's cube floating in (roughly) the middle of the Omniverse (although, it does slowly travel east-south).

Multiversal travelers often come to this location to solve the Rubik's cube each time it gets reset.

The Imaginary Rubik's Cube is an $$n \times n \times n$$ Rubik's cube, where n is the diameter of the universe in planck lengths. The size of this cube, is (in light years) the amount of possible combinations, which is $$10^{10^{124}}$$.