Blast shelter
Videos
A blast shelter is a place where people can go to protect themselves from blasts and explosions, like those from bombs, or caused by hazardous worksites, such as oil and gas refineries, or petrochemic
Blast doors in a missile control bunker at Minot Air Force Base, North Dakota.
The 25-ton blast door in the Cheyenne Mountain nuclear bunker is the main entrance to another blast door (background) beyond which the side tunnel branches into access tunnels to the main chambers.
The door of a light civil defense shelter in Finland.
A blast door of a subway shelter in Singapore.
Scallywag bunker
Videos
Scallywag bunkers or Auxiliary Unit Operational Base/OB were underground bunkers used by GHQ Auxiliary Units of the British Resistance against Axis invasion of the United Kingdom.
Reconstruction of a Scallywag bunker at Parham Airfield Museum, Suffolk