Previously gas was provided by an English firm called Inter Continental Gas Association (ICGA).
So they constructed four massive storage tanks called gasometers, in the 11th district of Simmering.
At the time, they were the largest in Europe.
After nearly a century of operation, in 1984, the gasometers were decommissioned.
Between 1999 and 2001, the gasometers were gutted leaving only the brick exterior and parts of the roof.
The gasometer houses 1600 tenants in about 800 apartments, as well as 250 students in 70 student apartments.
The Gasometers have developed a village character all their own - a city within a city.
Numerous theses and dissertations in psychology, urban planning, journalism and architecture have been written about this phenomenon.
The gas meter still intact.Photo credit
Sources:Wikipedia,Inhabitat,Wiener-Gasometer,