One of the A Coruña's most interesting monuments, San Anton castle (Castillo de San Antón) in A Coruña was constructed during the 16th and 17th centuries. A fortress built on a small island in the bay to defend the city against attacks coming from the sea, it effectively defended the entrance to the city against the English assault led by Francis Drake in 1589. There are some lovely collections of Celtic jewellery that were found on archaeological digs in Galicia on display inside the castle today.
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.