While reading the internet I came across this old article from 2004 about Vekomas 'Pandoras box' concept, and i remember reading this article 13 years ago and the buzz around it at the time, and as far as I can find out... this ride was never actually built. Instead I think many parks went with the cheaper and less complex ABC drop rides, and the concept probably evolved into 'sourin' attractions and 'HPATFJ' style rides. It was also rumoured for a while that Symbolica was going to be this style of ride! http://coastersandmore.de/rides/iaapa2004/iaapa1_e.shtml Anyway my question is twofold, A..... whatever happened to Pandoras boxes? and B - what concepts can you think of that never really went anywhere....Another I can think of is the Pipeline coaster that Alton considered before Nemesis (that John Wardley deemed too slow/boring).