In season seven of HBO's Game of Thrones, we finally got to see what dragons are really capable of on a battlefield. The series has some of the best visual effects in film or television and has given us some of the most memorable, epic-scale battles ever seen. Watch how George R.R. Martin's books are brought to life in this behind-the-scenes clip.

The latest behind-the-scenes featurette is in advance of Game of Thrones’ final season “Inside GoT: A Story in Visual Effects” goes behind the scenes with the show’s visual effects department, showing how some of the series’ most iconic scenes were made. This ranges from Viserion epic demise at the hands of the Night King, to now-Queen Cersei Lannister blowing up the Great Sept of Baelor.

“Things need to be shot faster and they need to be turned around faster,” Kullback said in the video. The stunning effects and sets are the result of the efforts of numerous supervisors, editors and concept artists, he adds. “There is a lot about working on a project like this, it is like joining the circus,” Kullback explained. “We move 10,000 miles away from home, put up our tent to put on our little show and then we tear the tent down and move it somewhere else.”

The biggest challenge was to define the workload and meet expectations, supervisor Joe Bauer added. “From the scripts we have a general idea of what we are doing, but for us it comes down to the individual shots and every shot defines a method,” he said. “All eyes are on us and we are trying to do things that no one has done before. We have done more than 10,000 visual effects shots.”