This medieval work by the Abbot of Iona provides an account of Jerusalem's geographical layout as narrated by Arculfus, noting the city's walls, towers, and gates. It highlights the bustling activity of various nations gathering for commerce, the challenges posed by animals in the streets, and the divine cleansing of the city after such gatherings. Arculfus reflects on the architectural marvels of Jerusalem, especially the church built over the Lord's tomb, emphasizing its spiritual significance. The narrative underscores Jerusalem's honor in the eyes of God and its importance in Christian faith, particularly the sites associated with the crucifixion and resurrection of Jesus.