Hypnotizing helix or spellbinding sprial–whatever you call it, the video of this set up with 141 cars and nine locomotives is pretty amazing–especially when you consider it was a temporary arrangement on a living room floor.
I’ve got links to this video, and other unique set ups by the same builder, on my CP Rail Manitoba & Minnesota blog at http://cprailmmsub.blogspot.ca/2014/03/hypnotizing-helixes-spellbinding.html
John Longhurst, Winnipeg