Submitting... Belfast was the main filming location for the hit drama, with featured city spots including the BT Tower, the former Telegraph Building, Odyssey Pavilion and East Belfast Yacht Club. Fans may be looking to stay connected to the show by visiting the Northern Ireland capital, as searches for Belfast getaways more than doubled in the run up to the final episode, while queries for ‘Belfast ferry’ and ‘train to Belfast’ increased by 21% and 44% respectively. Other searches that saw a rise around the Line of Duty finale included ‘who was H’ and character names - while, interestingly, ‘Line of Duty disappointing ending’ saw a 2450% increase over the last week, while ‘Line of Duty reaction’ was up 1600%.