Noise has to be loud. Always and in every sort of space. Therefore I don't go to noise concerts without earplugs or I search for natural anti-noise filters like walls or floors. This time it was in Praha-Žižkov freight railway station. Just to move from the seller to upper floor was enough to avoid insufferable noise. However the sound was transfered through this famous functionalist building upwards and made strong vibrations on small glass windows.
Žižkov freight railway station, one of the most extant functionalist industrial building in Prague the developer wanted to destroy forever. Luckily it is now culture monument, it is protected under law and it is still waiting for new usage.