The city is one giant grave, filled with the remains of previous eras. The Houses of Parliament sit on the edge of a former plague pit; St Paul's is built over human remains; Underground tunnels were driven through forgotten catacombs, thick with bones. A society can be judged by the way it treats its dead, and this is especially true of London. From Roman burial rites to the horrors of the plague, from the founding of the great Victorian cemeteries to the development of cremation and the cult of mourning that surrounded the death of Diana, Princess of Wales - Necropolis leaves no headstone unturned in its exploration of our changing attitudes towards the deceased among us.