Rolling ball sculpture

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A simple toy marble run

A rolling ball sculpture (sometimes referred to as a "marble run", "ball run", "gravitram", "kugelbahn", or "rolling ball machine") is a form of kinetic art – an art form that contains moving pieces – that specifically involves one or more rolling balls. A version where marbles compete in a race to win is called a marble race.


People watching George Rhoads

The tallest rolling ball sculpture in the world, at 22 metres (72 ft) tall, named the Energy Machine, located in the Hong Kong Science Museum in Hong Kong.[1]

See also[edit]


  1. ^ Knikkers, Jelle (October 28, 2015) "Marble Run Records" Jelle's Marble Runs Accessed:December 31, 2019