Peter Dazeley photographs the unseen parts of London
It is one of the most photographed cities in the world, but one man has sought out the parts of London usually kept hidden.
Peter Dazeley's book Unseen London shows the insides of popular tourist attractions such as Big Ben, as well as once glorious buildings like the Battersea Power Station.
He spoke to the BBC about how he got his stunning images.
Video Journalist: Paul Ivan Harris. All photographs copyrighted to Peter Dazeley.