Inside once-important abandoned building left to rot beside growing housing estate
![Inside once-important abandoned building left to rot beside growing housing estate](https://i2-prod.mirror.co.uk/incoming/article33293621.ece/ALTERNATES/s615/1_Inside-once-important-building-thats-been-abandoned-and-left-to-rot.jpg)
At its high, Penallta wasn't just another coal mine; it was a record-breaker, churning out over 3,000 tons of coal daily and setting national and European records
At its high, Penallta wasn't just another coal mine; it was a record-breaker, churning out over 3,000 tons of coal daily and setting national and European records