Standing atop a rugged cliff in Scotland is a beautiful yet crumbling stronghold known as Duntulm Castle.
Two miles north of the Stirlingshire town of Denny, close to the village of Torwood is the ruined beauty known as Torwood Castle.
Ackergill Castle, a much-altered tower sitting in the far northeast of Scotland is a seaside beauty with an amazing history hidden behind it.
Borthwick Castle in Midlothian is one of the largest and best-preserved surviving medieval Scottish fortifications still standing.
Ballindalloch Castle is one of the few private castles in Scotland that has been lived in continuously by the family that founded it.
Perched precariously on the very northern tip of mainland Scotland and soaking in luxurious views across the North Sea is the ever so beautiful Keiss Castle.
Formerly known as Bog of Gight, Gordon Castle is the largely impressive mansion of the Gordon Dukes of Gordon.
Once in the centre of a theme park, Loudoun Castle is an impressive ruinous mansion and castle, long held by the Campbells of Loudoun.
Castle Roche is a striking monument that was the seat of the de Verdun family (also spelt de Verdon), who also built the castle.
Antrim Castle was once a gorgeous, three-storey Georgian-Gothic castellated mansion until it was destroyed by fire and demolished. Little now remains.