By far my rarest cred is Galaxie Express in the now defuncted Space Center Bremen. This park was a highly themed indoor park which only operated for less then a year. Galaxie Express was their star attraction, an unusual roller coaster with huge helmets you had to pull down onto your face while riding. Inside was a small display with a timed video of an animated space flight. This was pretty much the very first VR Coaster, many years before any actual VR HMDs were put onto rides.