This month sees the end of European Architectural Heritage Year. A report by the SAVE Campaign comes out this week, which contains the alarming news that, in the first six months of this of all years, 182 buildings listed for their historical or aesthetic value were destroyed. Why does the 'spirit of our age' seem to be demolition? Film-maker Roger Graef and journalist Simon Jenkins explore our 'forgotten heritage,' and some of the ways in which it might be conserved and put to new use.