Monica Galetti and Giles Coren hop across to Ireland to scale the imposing and ancient ramparts of Ashford Castle. Set in 350 acres, it was founded 800 years ago by the Anglo-Norman De Burgo family, and much later became the family home of the Guinness family. With the help of hotel historian, Fintan, Giles discovers that the castle has had a rollercoaster journey through the centuries, sporadically reaching moments of real jeopardy, only to be saved by a turn of events or new owners. As recently as 2011, the hotel went into receivership but was bought in the nick of time and, after undergoing a ú50 million restoration, has the ambition to be the best hotel in the world.