Built in the East End of London 250 years ago, to provide free medical care for some of the poorest and most deprived people in Britain the London Hospital has pioneered medical breakthroughs and healthcare for generations of men, women and children.

On edge of the Suffolk coast lie some of Britain's most mysterious ruins. Monumental concrete bunkers rusting radar towers and crumpled military hardware; a lens into a bygone era of secrets, spies and superpowers. For almost a century Orford Ness was owned by the MOD and when it closed in 1993 its buildings were still shrouded in secrecy. In this episode, Michael sets out to unlock its secrets.

Since its opening, Shepton Mallet prison has been home to thousands of prisoners, countless executions, and many escape attempts.

Hidden away in the heart of the Salisbury Plain in Wiltshire is the abandoned shell of Imber. A thousand-year-old-village, which was once a vibrant community before a series of extraordinary events transformed it into a desolate ghost town.