An incendiary factory in the heart of Vienna is unique not only because it does not completely damage the environment, but it also, unlike its collars, decorates the city.

The launch was built in 1992 on a project of a genius Austrian artist and architecture of Fredensreich Hundertvaser. At first, the architect was opposed to being involved in the reutilizer, but after the promise was made to use constantly updated technologies and to heat up 60,000 Vienna apartments, Hundertvaser agreed to design the building.

As a result, Vienna has a unique ecologically clean plant and is still one of the most clean European capitals. And the crowds of tourists are happy to be photographed in the background of the factory, often without even knowing its real purpose.