Whether you're a faithful or a traitor, there's one star of The Traitors that never seems to put a foot wrong: the Scottish Highlands.
While the twists, turns and round-table accusations keep millions of viewers hooked, the dramatic landscapes are just as memorable. From turreted castles to windswept hilltops, the Highlands provide the perfect backdrop for a show built on mystery, deception and just the right amount of paranoia.
If you've found yourself wondering where The Traitors is filmed, here's a closer look at some of the locations that have helped make the series so atmospheric.
Ardross Castle: The Highlands' most famous castle (at least for now)
Both the UK and US versions of The Traitors are filmed at Ardross Castle, a striking Scottish Baronial castle located around 25 miles north of Inverness in the Highlands. The estate was purchased by Sir Alexander Matheson in 1845 and later redesigned by architect Alexander Ross, who added many of the distinctive features seen on screen today, including its impressive towers, turrets and grand façade. Sir Alexander was also closely associated with the development of Scotland's railways, serving as the first chairman of the Highland Railway.
Set amongst formal gardens and more than 100 acres of Highland parkland, Ardross Castle looks as though it was designed specifically for dramatic television. The soaring entrance tower, sweeping staircase and richly decorated interiors have become almost as recognisable as Claudia Winkleman's knitwear. These days, the castle operates as an exclusive-use venue for weddings, events and filming rather than a hotel, offering accommodation for up to 41 guests.
The Fyrish Monument: Series 4's dramatic challenge backdrop
If Series 4 left you wondering about the mysterious ruins perched high above the landscape, you'll be pleased to know they're very real.
The Fyrish Monument sits atop Fyrish Hill near Evanton in Easter Ross and appeared as the backdrop for one of the series' most demanding challenges. Built in 1782 on the orders of General Sir Hector Munro of Novar, the monument was designed to resemble the Gates of Negapatam (now Nagapattinam) in India, commemorating a British military victory there.
Like many follies of the period, it wasn't built purely for decoration. Local tradition suggests the project was intended to provide employment for local people during a difficult economic period, and stories persist that Sir Hector would roll stones back down the hill overnight to create additional work for labourers the following day. Whether that's entirely true or not, it certainly adds to the folklore.
Today, the monument stands in splendid isolation overlooking the Cromarty Firth, providing expansive views across the surrounding Highlands. It is exactly the sort of place that feels perfectly suited to a challenge involving a great deal of uphill effort and increasingly dramatic facial expressions.