There’s seldom anything as joyful and relaxing to watch as a simple marble run. Of course, the thing about letting marbles fall under gravity is that you eventually need to lift them back up again.

Which marble run is best? Marble runs are rolling ball sculptures you build yourself. You assemble tracks in all kinds of wild configurations and watch as the marbles roll down hills, around corners ...

Genius LEGO builder JK Brickworks created a motorized, endlessly looping LEGO marble run for his latest plastic masterpiece. JK Brickworks, the genius mind behind some of the coolest motorized LEGO ...