Bad Ems is a city in Rhineland-Palatinate, Germany. It is the county seat of the Rhein-Lahn rural district and is well-known as a bathing resort on the river Lahn. The town is built on both sides of the River Lahn, the natural border between the Taunus and the Westerwald, two parts of the Rhenish Slate Mountains. The town and its outer districts are also within the Nassau Nature Reserve. The town is linked to a view point at the Bismarckturm (Bismarck Tower) by the Kurwaldbahn funicular railway.
