Watch as HO-scale (1:87) toy trains load onto a spiral track, layer by layer, in this video by train enthusiast James Risner. Risner has experimented with a series of these spirals on his YouTube channel, including this endless vortex of toy train cars and engines traveling slowly and quickly in either direction:

There’s also a Quadruple Double Helix track setup. The outside track climbs up, the inside track goes down:

Watch this next: Northlandz – One of the world’s largest model railroads and Metropolis II at the Los Angeles County Museum of Art (LACMA).

h/t Kottke.

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