Three reinforced concrete hoppers which were once used for solid fuel are remains of the original technological equipment of the boiler room.
Today, they are protected as national monuments and serve a completely different purpose, as 𝘽𝘼𝙎𝙀 meeting rooms. Not ordinary meeting rooms though. They have glass floor which turns every meeting into a spectacle - you will have 12 meter depth right under your feet.
Would you dare to take a step?