Air raid shelters

thumb|upright=1.4|Model of the New Reich Chancellery with location of bunker complex in red thumb|upright=1.4|Model of (left) and Vorbunker (right) The '''''' () was an air raid shelter located near the Reich Chancellery in Berlin, Germany. It was part of a subterranean bunker complex constructed in two phases in 1936 and 1944. It was the last of the Führer Headquarters () used by Adolf Hitler during World War II.

structure which protects against enemy attacks from the air

enclosed space specially designed to protect occupants from radioactive debris or fallout

thumb|right|250px|Schematic diagram of the Vorbunker as it was in April 1945 The Vorbunker (upper bunker or forward bunker) was an underground concrete structure originally intended to be a temporary air-raid shelter for Adolf Hitler and his guards and servants. It was located behind the large reception hall that was added onto the old Reich Chancellery, in Berlin, Germany, in 1936. The bunker was officially called the "Reich Chancellery Air-Raid Shelter" until 1943, when the complex was expanded with the addition of the Führerbunker, located one level below. On 16 January 1945, Hitler moved i

museum

underground infrastructure system

mountain

thumb|right|300px|Pionen in 2006, before it became a data center.

low-income migrant workers in China

Cave in Birżebbuġa, Malta

large air-raid shelter in Stockholm, Sweden

museum in Italy

shelter of the Spanish civil war located in Alcoy (Alicante), Spain