The Red Keep interior are filmed at Belfast's studio The Paint Hall. Set designer Gemma Jackson said, "When I was thinking about King's Landing, the whole red aspect of it, that immediately made me think of Rajasthan. The floor King's Landing was from the Pantheon in Rome." Martin said that "Our throne room is a spectacular throne room – we actually redressed a throne room built for film. And again, it occupied a quarter of the Paint Hall, so it's very big, but in my mind [in the books, it's Westminster Abbey, it's St. Paul's Cathedral."