Tower of London
The singing duo are given 24 hours to learn about World Heritage Sites, before taking charge of a group of visitors in a contest that sees them competing for the title of best tour guide. They begin by meeting professional Beefeaters to explore the secrets of the Tower of London, with help from Big Brother's Brian Dowling and former EastEnders star Joe Swash.


9:00pm - Help comes from an unlikely hero at the graduation ceremony. Last in the series.
9:00pm - Mary Portas visits Liskeard in Cornwall. Last in the series.
10:00pm - Megan and Kate try to identify the victims of a fatal car crash.
8:00pm - The actress explores the New Forest National Park. Last in the series.