Quarry Air Raid Shelter
After a series of bombs were dropped on Guildford during the Second World War, the borough council decided that a large communal air raid shelter needed to be built. 
An old quarry was decided as the location as the soft chalk would be easy to dig into and construct in a hurry.
The construction took only a year. The finished tunnels although roughly dug provided bunks, sanitation and first aid points for over 1000 people.
Emergency hatches built into the shelter were sealed off approximately 12 years ago when a child fell into hole and sadly died.
Disused since 1944 the council have since used the shelter for general storage now though they are empty since the need for a ‘shoring’ up project in the late 1980’s in which the wall of the shelter were strengthened to stop them falling apart. 
I was lucky enough to be allowed into these tunnels as part of a UK Heritage Day, the main tunnel is now the only one to be lit, but during the war all tunnels were lit and ventilated and the remains can be seen including the ventilation tunnels near the escape hatch and the rusty fan.
The signs left on the walls are the originals, wet from the condensation trapped within the walls, once there appeared to be doorways at certain points but the wood has long since rotted away only leaving the brick surrounds.
All the bunks would be on one wall and a small corridor was left for people to pass 
though to get to further bunks or to use the basic facilities, it is hard to imagine 1000 people in such a space. All hoping that there houses would still be there when they got the all clear to leave.