
Built in the Middle Ages by the Montaigus, this formidable stronghold gave the town its name: rocha fortis, the strong rock. Perched on a limestone promontory carved by the Lhomme River, it holds an exceptional strategic position overlooking the Famenne, bordered by steep cliffs and sinkholes. Frequently besieged, transformed into a palace, and later nationalised, the castle eventually served as a stone quarry for local townsfolk. Today, this landmark of history and archaeology is open to visitors.