from perfect. Burning garbage produced smoke, ash, and potentially hazardous pollutants, particularly when plastics and other synthetic materials became common. Poorly operated incinerators could also create unpleasant odors and contribute to urban air pollution.
What Happened to Them?
As municipal waste collection improved and environmental regulations became stricter, many building incinerators were abandoned. In some cases, the equipment was removed; in others, the combustion chamber and heavy metal doors were simply sealed behind walls or left in basements.
That’s why one of these mysterious doors can still occasionally be found
