As I mentioned before we were visiting the "Medival Phantasy Spectaculum" and saw some statues of mythical creatures.
They also had an exhibition of Dinosaurs there. One installation was for the kids to crawl into the mouth of a T-Rex. My little one had trouble getting out again so my wife had to pull him out. :-)
After a while we noticed some lighting spots. After asking a few questions we learned that the installation is also opened during the night and if you visit then, it can get very creepy and scary at some points with the lights surprising you with what looks like a dinosaur jumping out of the bushes.
Just when we decided to call it a day and get home we encountered the team from "RaptoRex". They roam the park and market during that event with someone walking around in a costume.