A view of the abandoned coal mining town of Pyramiden, Spitsbergen, Svalbard, Norway, Europe

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.

Glacier hikers on Nordenskioeldbreen Glacier with Pyramiden settlement at back, Billefjord, Spitsbergen, Svalbard, Norway, Scandinavia, Europe

View over frozen Adolfbukta and Billefjorden near Nordenskioeldbreen towards Pyramiden ghost town. Winter landscape on the island Spitsbergen in the Svalbard archipelago. Arctic, Europe, Scandinavia, Norway, Svalbard