I made a giant roller coaster, with a download. Please note, that if you are to place this in Mincraft World Editor, you must have atleast 121 available space, due to great height.

If you like my rollercoaster, please give me a diamond, It took me just as much to build this ;)

(I say that this is 95% complete, because you can finish the parts you want to, ex. a pathway to it, ect.)