The main headquarters is at Paint Hall studios in Belfast, Northern Ireland, where most of the interior sets are housed; the better part of location shooting also takes place in Northern Ireland, but many other European countries, and even Africa, have been used as well.
Most locations have benefited from increased tourism due to the publicity, but not everyone has been pleased. It is rumored that Maltese officials complained that protected habitats were damaged during the filming, forcing future shooting to move to Croatia in season 2. Laws involving the transportation of animals have also required filming in the USA (Season 3, “The Bear and the Maiden Fair”), and Canada (Season 5, scenes involving a Direwolf).