The Palabora open-pit copper mine produced copper here for decades and left behind Africa's largest man-made hole — roughly two kilometres wide and 450 metres deep. A public viewpoint on an artificial hill at the mine's edge gives a vertiginous look down into the pit, with the scale only becoming clear when you spot the tiny specks of machinery far below.
The mine is still active underground, so you cannot enter, but the viewpoint is freely accessible and gives an extraordinary perspective on industrial extraction at this scale. The Palabora carbonatite complex is geologically remarkable — the ore body contains not just copper but uranium, titanium, zirconium, and vermiculite, all in a single ancient volcanic pipe. It is a strangely compelling sight in a town that otherwise shows little of its mining heritage at street level.