Hohenwittlingen ruined castle stands above Wittlingen district of Bad Urach and offers a fabulous view of the Erms valley. You can combine a visit here with a walk to the Wolfschlucht (Wolf Ravine) and the Schillerhöhle cave.
Hohenwittlingen was first documented in 1248 as the property of the Dukes of Urach. In 1251 it came into the possession of the Dukes of Württemberg, for whom it was primarily an important military base. In 1548 the castle offered sanctuary to the reformer Johannes Brenz of Württemberg (1499–1570).
The castle was badly damaged by fire In 1576, after which it was only partially repaired. After the Thirty Years' War the castle became a prison for 'poachers and other wrongdoers'. It then fell into ruin. By the 18th century the abandoned castle was still offering the farmers of Wittlingen protection when enemy troops approached. After this, however, it was abandoned.
The ruins (near the Wittlingen district of Bad Urach) are freely accessible, but only on foot.
References:The Broch of Clickimin is a large and well preserved, though somewhat restored broch near Lerwick. Originally built on an island in Clickimin Loch (now increased in size by silting and drainage), it was approached by a stone causeway. The water-level in the loch was reduced in 1874, leaving the broch high and dry. The broch is situated within a walled enclosure and, unusually for brochs, features a large 'blockhouse' between the opening in the enclosure and the broch itself. Another unusual feature is a stone slab featuring sculptured footprints, located in the causeway which approached the site. Situated across the loch is the Clickimin Leisure Centre.