A team of explorers acting on a tip from a mule-handler have discovered the ruins of a lost city, Cota Coca, some 50 kilometres southwest of Machu Picchu in the Andes. Cota Coca is likely one of the places to which fleeing Incas retreated from the Spanish in 1532, before their total defeat about 40 years later. The team believe that the site has remained untouched for more than 500 years. British writer and explorer Hugh Thomson said the site, more of a settlement than what we would understand as a city, was in a “remarkable state of preservation”.

Mr Thomson, a co-leader of the expedition, said: “You're only going to find a new Inca site once in your life.”

Britain's Royal Geographical Society says Cota Coca's “constructed area” is more than twice as large as any found at the other Incan ruin whose discovery was announced just a few months ago. “This is an important discovery, because it is a sizeable centre of good — quality late — Inca masonry,” said John Hemming, a well — known Inca expert and former director of the Royal Geographical Society.