USA, United States of America, Arizona: Biosphere 2 Ceter of the Columbia University. From 1991 to 1993 3 people tried to live in this artificial world without support from the outside world. Today it is a tourist attraction and conferece center.
USA, United States of America, Arizona: Biosphere 2 Ceter of the Columbia University. From 1991 to 1993 3 people tried to live in this artificial world without support from the outside world. Today it is a tourist attraction and conferece center.
USA, United States of America, Arizona: Biosphere 2 Ceter of the Columbia University. From 1991 to 1993 3 people tried to live in this artificial world without support from the outside world. Today it is a tourist attraction and conferece center.


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