Aled Jones uncovers hidden gem churches in London with historian and tour guide Joanna Bogle. Starting in Holborn, Aled, along with a small group, is guided down the narrow pathways of the City of London to Fleet Street to hear the fascinating link between the church and journalism. We discover how one church became known as 'the Jerusalem of London', and another, a memorial for the RAF, resonates with tour guide Joanna as she shares the story of her uncle, a pilot who lost his life in the Second World War.Laura Wright visits a recording studio inside the walls of a beautiful church in Mayfair, where daily meditations are recorded and broadcast to over 100,000 people worldwide. Laura also learns how an app has been designed for busy commuters to help fit in time for prayer and reflection on the Gospels.One Grade II listed chapel hidden in the heart of a new property complex in Chelsea is home to an exhibition space for the Prince's Foundation, which offers students the opportunity to study the ancient art of iconography. Irina Bradley, a tutor in traditional arts, explains the symbolism of icons and that she believes God healed her cancer after she prayed before an icon of Mary.