65 million years ago the dinosaurs disappeared from the face of the earth after 165 million years of domination .
Was it a gigantic meteor that created a blanket of dust over the world which changed the environment from one friendly to dinosaurs to a hostile one?
Or was it some other cause?
Will we ever know for certain.
Dinosaurs are fascinating creatures that came in all shapes and sizes.
We have one of the world's largest collections of life-sized dinosaur models, ranging from the ever popular Tyrannosaurus Rex and Brachiosaurs, to the lesser-known Tsintaosaurus. There are over 200 models here – will you find your favourite dinosaur on your visit?
At the National Showcaves Centre for Wales, we have created One of the World's largest dinosaur parks.