The Castle of Archidona was built by the Arabs in the 9th century and rebuilt by Alhamar, the first Nasrid king, in the 13th century. In 1462 Archidona was conquered by the Conde de Osuna, beginning to expand outside the walls to occupy the area it currently has. After the Christian conquest, the new population center and its most prominent urban representation in the Plaza Ochavada, the 18th century curious octagonal shape is established; in her red brick and white lime are combined.References:
Frösöstenen is the northern-most raised runestone in the world and Jämtland's only runestone. It originally stood at the tip of ferry terminal on the sound between the island of Frösön and Östersund. The stone dates to between 1030 and 1050. It has now been relocated to the lawn in front of the local county seat due to the construction of a new bridge, between 1969 and 1971, on the original site.
Frösö runestone inscription means: Austmaðr, Guðfastr's son, had this stone raised and this bridge built and Christianized Jämtland. Ásbjörn built the bridge. Trjónn and Steinn carved these runes.