We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Burt Helm A great marble run, like any good learning toy, sparks curiosity and ...

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 ...

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.