 Complete the following phrase:  At that time, many plastic dolls were displayed in the tunnels of the castle hill, which represented 34 fairytales such as Snow White. The trip took at that time about 20 to 25 minutes on the long track with gauge. DC-powered electric locomotives like the locomotive Heinz 1 hauled trains with ten cars built in 1968 at a speed of on a track with eight points. Up to 20 passengers could ride in the old Fairytale Grotto Railway. In 1997, the worn tracks were completely renewed during the construction of the Schloßberglift and the venue Dom im Berg, with a track change from 500 to 600 mm gauge. In 1999, the railway was reopened, but was closed in 2000 due to the tightened safety regulations after the fire of the 