Daily Mail - Daily Mail Weekend Magazine
The Forum
11AM, RADIO 4
The high mountain Inca citadel of Machu Picchu was built in the 15th century, then abandoned in the 16th century. It disappeared under a sea of vegetation, its location known to few. Bridget Kendall is joined by the archaeologists Lucy Salazar and Michael Malpass, the mountaineer Johan Reinhard and the writer Mark Adams to talk about the many mysteries of this royal estate, built on a high ridge 7,970 feet above sea level.