Wiener Looping is one of Anton Schwartzkopf's most insanely sadistic designs, or so I've read. I remember driving by Circus World with my parents back in the mid '80's and seeing this ride there. I wanted to ride it, but I couldn't talk my parents into it. I was maybe 10 at the time. I couldn't figure out how the train made it over the top of that hill (where the 2 peaks come together). I didn't understand the concept of a rollercoaster going backward at the time. hehe The last I heard, the coaster is now running at a park in Austria. I would show you the Schwartzkopf coaster site if I could remember the link, but I can't. I think that is where I was reading about Wiener Looping.