The Castle of Ursel is the first thing you see crossing the old bridge into Durbuy's historic centre — a solid 17th-century pile rising above the Ourthe, its stone walls the colour of the surrounding hills. Built on the ruins of an earlier 11th-century fortification, it was the seat of the Counts of Ursel, who gave their name to the family that owned the town for two centuries.
The castle is privately owned and not open for interior visits, but you can walk around the exterior and admire it from the bridge and the main square. It forms the visual centrepiece of Durbuy's medieval ensemble alongside the church and the Corn Hall.