BBC's Bush House departure 'memorable' - Mark Thompson
12 July 2012 Last updated at 07:03 BST
Outgoing Director General Mark Thompson has paid tribute to Bush House as the BBC World Service bids farewell to the building.
After more than 70 years its journalists are relocating to a new building in London along with the rest of BBC News.
Mr Thompson recorded a special despatch for the final news bulletin broadcast from the building.