Matt Baker and Alex Jones are joined by Ronan Keating and Oscar Pistorius.
How Britain was transformed by the great devastation of the Black Plague.
Andrew Lawrence, Keith Farnan, Zoe Lyons and Tommy Tiernan join Michael in Dublin.
Terry Wogan continues his epic journey around his homeland and visits Northern Ireland.
Griff, Dara and Rory struggle to control an old barge and cope with a huge street parade.
Budding novelist Tricia Putwain attempts to raise funds for a trip to Dublin.
From Dublin to Belfast, a look at how the sea has shaped the island of Ireland.