The Wörth Castle is a fortification in the Swiss municipality of Neuhausen am Rheinfall in the Canton of Schaffhausen. The water castle is located at the Rheinfall, built on a small island in the Rhein river. Wörth was first mentioned in the 13th century, serving up to the middle of the 19th century as a major transhipment point on the east-west trade route, that led from Lake Constance and Basel, and was interrupted by the Rheinfall waterfalls. The present castle was built in 1348. When the railway was built, the water traffic route lost its importance, and the Canton of Schaffhausen rebuilt the building as a restaurant in 1835/36.