Dinosaurs might have died out around 65 million years ago but lots of people are still fascinated by them.
Even now, more and more is being discovered about what dinosaurs looked like, ate and behaved.
The Walking with Dinosaurs live show has been performed in more than 200 cities across the world.
We sent Martin for a look behind the scenes at the arena tour in Liverpool to see them come to life.
Check out his report at the top of the page.