Hotels In Unterhausen Lichtenstein. More hotels in unterhausen restaurants where to eat unterhausen. It lies at the foot of the swabian alb (plateau). Lichtenstein auf der schwäbischen Alb Sehenswürdigkeiten from www.schwaebischealb.org Each room at the hotel adler features a minibar and tv. The honau hill, on whose territory the castle is located, is considered one