Former Barclays banker Ajit Chambers is embarking on a daring one-man crusade: to bring the 'ghost' underground stations buried beneath London's streets back to life.

Chambers has been combing the cobwebs and catacombs beneath the streets of the British capital since stumbling upon an old underground map in 2009. His six-year subterranean journey has uncovered all manner of weird, wonderful and downright scary things.

Now he stands on the verge of launching a pilot rejuvenation project, which could see dozens of stations brought back into use as retail and leisure attractions.

With his dream close to becoming reality, IBTimes UK spoke to him about his favourite stations, his motivation for launching this lone crusade and the things he has bumped into below Trafalgar Square, Liverpool Street and Waterloo.