In this episode we check out the largest abandoned factory we've ever explored - a massive blast furnace known as HFB and it's associated steelworks. This location has been on our bucket list for years and it was amazing to finally be able to travel to Belgium to see it for ourselves. It's truly one of the most impressive abandoned industrial sites in the world. Special thanks to Pierre M, an ex-employee of the steel mill who allowed us to use his footage of the blast furnace in action. You can see his blog about the steel industry in Liège here: https://haut-fourneau06.skyrock.com/ We also used footage from "HF6: The End of the Film" which you can watch here: https://www.youtube.com/watch?v=_2eBcHrJxok