Hommewick Hall, a sprawling mansion in the heart of the English countryside, has a long and storied history - from its 16th century origins to its top-secret 20th century role in the war effort, and its current life as a well-preserved tourist attraction. On this winter's evening, after the last tourists have left but before the doors open again for a festive concert, the corridors and courtyards of this regal estate are yours to explore as you wish.

Theme chosen: mostly cold, with bits of hot here and there