There are four runestones located at Aspa, which is about six kilometers north of Runtuna, where a road has passed a creek since prehistoric times. One of the stones is the oldest surviving native Scandinavian source that mentions the kingdom of Sweden beside the runestones DR 344 and DR 216. Another stone Sö 137 is raised in memory of a Viking who had spent time in the west.References:
The city walls of Avila were built in the 11th century to protect the citizens from the Moors. They have been well maintained throughout the centuries and are now a major tourist attraction as well as a UNESCO World Heritage Site. Visitors can walk around about half of the length of the walls.
The layout of the city is an even quadrilateral with a perimeter of 2,516 m. Its walls, which consist in part of stones already used in earlier constructions, have an average thickness of 3 m. Access to the city is afforded by nine gates of different periods; twin 20 m high towers, linked by a semi-circular arch, flank the oldest ones, Puerta de San Vicente and Puerta del Alcázar.