Leiðarvísir og borgarskipan ("A Guide and List of Cities") is an itinerary written c. 1157 by Níkulás Bergsson (a.k.a. Nikolaos), the abbot of the monastery of Þverá in Eyjafjörður, Northern Iceland.
It is a guidebook for pilgrims about the routes from Northern Europe to Rome and Jerusalem. It contains two descriptions of lands around Norway that the Abbot seems to have acquired for his book from independent sources.
In the following list there are the towns in the different itineraries described in Leiðarvísir,:
Gelsinger, B. E. (1972). "The Mediterranean Voyage of a Twelfth-Century Icelander." The Mariner's Mirror, 58(2), 155–165. doi:10.1080/00253359.1972.10658648
Ericus Christianus Werlauff: Symbolae ad Geographiam Medii Aevi, Ex Monumentis Islandicis, Copenhagen, 1821 - septentrionalia.net (Leiðarvísir in Old Icelandic, including a Latin translation)
Luana Giampiccolo: Leiðarvísir, an Old Norse itinerarium: a proposal for a new partial translation and some notes about the place-names
Tommaso Marani: Leiðarvísir. Its Genre and Sources, with Particular Reference to the Description of Rome. 2012, Durham.
Interactive map of all locations mentioned in Leiðarvísir (Marani, 2011)