Woodworker extraordinaire [Matthais] was approached by a toy company to create a ‘marble run’ toy. [Matthais]’ jig-building skills are beyond reproach, so whipping up a prototype for this ...

This creates a path through the maze. Scaling this path along the Z-axis, and then replacing the path with a marble track creates the run. It’s then a simple matter of adding a shaft to the loop ...

Why it's incredible: The marble walls reflect the turquoise color ... where we highlight the fantastic history and science behind some of the most dramatic landscapes on Earth.