A couple of years ago I saw a puzzling sign near the village of Kelvedon Hatch, showing the way to a 'Secret Nuclear Bunker [photoblog.com]' - surely something of a contradiction! It turns out that a non-descript looking bungalow nearby hid a big secret from 1952, first as an RAF tracking and early warning station. In the 1960s it briefly became a civil defence centre before taking on its most crucial role as a potential Regional Government Headquarters if a nuclear bomb was dropped on the UK. If the worst had happened the three floor bunker beneath this apparently unassuming bungalow would have become home to up to 600 people, including government ministers, and even the Prime Minister, for up to three months in order to maintain their essential governmental duties. It was decommissioned in 1992 when it was felt that the danger of nuclear war had reduced enough for it to become redundant. It was then bought by the Parrish family who now open it to the public so visitors can learn more about its history. Looking around the bunker today was a sobering experience, knowing that the people down here would have been safe from radiation and nuclear fallout, while their friends and family above ground could have been in dire straits.