By Joseph Aloysius Hansom2021-07-16T05:00:00+01:00 Bunker mentality Nigel Hugill, chief executive of Urban & Civic, is showing reporters around one of his favourite buildings at Alconbury Weald, its development on an old RAF airfield in Cambridgeshire. This is not one of Urban & Civic’s smart new buildings. This is the Magic Mountain, a Cold War nuclear bunker which boasts a blast cap made of rubble and a gravel lower layer that would absorb a nuclear blast. Completed in 1988, it was never used in anger because almost as soon as it opened the Iron Curtain started to fall. It cost £58m to...