and here is a bit about Goliath the biggest rollecoaster in europe at the momemt... (I'm not sure if it's true, but that's what I have been told)...
Isnt the collosus at Thorpe Park Bigger? https://www.thorpepark.com/park_guide/lost_city.asp (it has the most loops in the world I think. 10 to be precise...) 
Alan
Technical Director - Framestore
Currently working on: Your Highness
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