Brecon Castle was built by the Norman Lord Bernard de Neufmarché in 1093, and was frequently assaulted by the Welsh in 13th and 15th centuries. The castle's ownership changed numerous times. It began falling into ruin when Henry VIII executed the last dukes of Buckingham, who at the time controlled the castle. It was renovated and made into a hotel in the early 19th century.
Numerous renovations were carried out through the castle's history. A shell keep made of stone was constructed in the late 12th century (the keep was initially made of wood). In 1233, a bailey wall, also made of stone, was constructed. Two towers, one round and the other semi-octagonal, were built in the 13th century and early 14th century, respectively. A hall block was added in 1300.
The castle had become mere ruins by the end of the Georgian era. Renovations were begun in 1809 by Sir Charles Morgan of Tredegar House, and more than £7,000 had been spent on the repairs by 1814. The castle was made a hotel, which it currently continues to be.
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.