We have built 4 stacks in the city centre of Warsaw in the former building of Elektrociepłownia EC Powiśle (a heat and power plant), which has now been restored and is part of a modern service, shopping and hotel complex in Powiśle. We have assembled the stacks inside a 100-year-old historic building – their role is mainly decorative, and together with the entire infrastructure surrounding them, they are designed to remind of the industrial nature of this part of the capital.