'Game of Thrones' castle selling in Northern Ireland for less than the cost of a New York apartment

“Game of Thrones” fans no longer have to fantasize about being part of the popular fictional world thanks to a prime piece of real estate that’s now up for sale.

Northern Ireland’s Gosford Castle, which served as a backdrop in Season 3 of the HBO series, is on the market starting at £500,000 (about $656,452). For comparison, in 2015, the median price of an apartment in Manhattan was $916,000.

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Exterior shots of the mid-1800s historical property served as Riverrun, the ancestral castle of House Tully. It’s considered to be the largest castle in the country, Mashable reports.

Exterior shots of the castle were used for "Game of Thrones," to depict House Tully.  (HBO)

According to the listing, Gosford Castle was built by the 2nd Earl of Gosford, Archibald Acheson, and was designed in the Norman Revival style by London architect Thomas Hopper. It was occupied by the Earls of Gosfard until 1921, when it was used during the Second World War to accommodate troops and hold a prisoner of war camp on the property.

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The castle was most recently purchased by a developer who began turning it into multiple luxury apartment units. The portion that’s currently for sale has been “partially developed” with the goal of converting it into six individual units of around 3,500 square feet, some including a rooftop garden.

Michelle Gant is a writer and editor for Fox News Lifestyle.