Zierer is the company that has built the "Knightmare" at which Lancashire theme park?
Camelot Theme Park Camelot Theme Park is an abandoned resort and theme park located in the English county of Lancashire. The park's theme was the well known legend of Camelot, and the park decor incorporated pseudo medieval elements. It was located on a 140 acre site near the village of Charnock Richard, 3 mi west of Chorley.
Polar X-plorer Polar X-plorer is a steel roller coaster at Legoland Billund in Billund, Denmark. It opened on 29 April 2012 as Zierer's first coaster with a freefall drop track section.