These Three Countries Are Winning the 'Game of Thrones'
Iceland, like Northern Ireland, welcomes the show filming there. Today, the tourism department is launching a sweepstakes called "Iceland Naturally" which is a marketing project targeting U.S. tourists. Fans can enter to win a trip to Iceland and visit the sites where the series was shot.
Gudrun Birna from Promote Iceland, part of Iceland's government-backed tourism arm, said they do not have any measurements yet on how tourism has been affected by the show. However, they did pose the question on social media channels a few weeks ago and the response was "phenomenal," she said, indicating people have been traveling to the country because of "Game of Thrones."
While the EU 27's unemployment rate ticked up in February to 10.9 percent, Iceland's dropped to 4.7 percent compared to 7.3 percent a year earlier. GDP growth in 2012 was 1.6 percent in Iceland while the E.U. 27 economies as a whole contracted at a rate of 0.3 percent for the year.
If you've watched the show and wondered where all the exotic, arid, desert footage was shot for the 'Qarth' kingdom scenes, HBO said they are mostly filmed in Croatia.
The premium cable channel works with a production company called Embassy Films, based in Croatia, for the scenes shot there. About 170 local crew were employed for shooting in Dubrovnik, according to the production company.
"This was very good for Croatian, Dubrovnik economy, starting from crew and people directly involved, to hotels, transportation, etc.," said Erika Milutin, executive producer working on the show with Embassy Films.
When asked for some figures on production costs there, Milutin said, "Due to the confidentially agreement I have signed with HBO I am not allowed to share any more information with you." HBO also refused to provide more details.
However, Jelka Tepsic, head of Communication Department for the Dubrovnik Tourist Board, said they have already begun organizing tours of Croatia based on "Game of Thrones" filming locations.
Croatia is another country in dire need of economic help.
Its economy was hit very hard during the recession. In 2009, the economy was contracting at a rate of 6.9 percent on average for the year. It's made gains since, however the economy is still not growing. In 2012, it was still shrinking at a rate of 2.0 percent on average, according to Eurostat.
Also, the jobless rate is exceptionally high—18 percent as of December 2012.
Where to next?
"Game of Thrones" scenes have also been filmed in Morocco, Scotland and Malta, although the majority of production is based in Northern Ireland for the show, according to Mara Mikialian, Vice President of Program Publicity for HBO.
With season four ahead, Mikialian told CNBC, "We'll absolutely be back in N.I. and likely we'll return to Iceland and Croatia."
—Written by CNBC's Katy Byron; Sofia Pitt contributed to this report.