Mysteries from castles around the world are uncovered, including deception at France's Versailles, a topless duel at Czech Republic's Kynzvart Castle and a war hero's death-defying bid for freedom at Germany's Konigstein.

One of the biggest cons of all time plays-out at Chateau de Versailles in France; An immaculate Czech domain is linked to a bitter feud; and an imprisoned general makes a death-defying bid for freedom at a German citadel.

The dramatic origins of the Christmas carol, go back to a citadel in Prague; within an opulent Parisian palace, a doomed painter uses art for salvation; and a jealous butler learns a dangerous secret at an idyllic English estate.