On this elaborately carved wooden track-slash-Rube-Goldberg-Machine, a pack of marbles race from start to finish. Our hero is a shiny yellow/gold marble. Will it win?

The track's creator, YouTube's Murmiland, calls this a "rafting track" because it has water running along it. That makes for an exciting sound mix, and adds a bit to the visual chaos of all these marbles rolling along.

Keep an eye out for the miniature Stonehenge replica, and enjoy the simple pleasures of marbles and gravity.