Korskirken is located at the intersection of the streets Kong Oscars gate and Nedre Korskirkeallmenning and dates back to the latter half of the 12th century. The name of the church refers to the True Cross (and not to its cruciform plan), and is usually rendered in English as 'Holy Cross Church'. This is because it was, as one of only a Norwegian churches, in possession of a relic from the True Cross. This relic was later stolen by the Danish king, along with several other relics from all over the country, during the Reformation.
Korskirken was first mentioned in Sverris saga from 1185. At the time of construction, the church was situated on the shore of Vågen, probably marking the southern border of settlement in Bergen. Korskirken was damaged in the fires of 1198, 1248, 1413, 1582, 1623, 1640 and 1702; the church originally had two towers, but one was destroyed in the 1582 fire and never rebuilt. It was originally built with straight rectangular plan. The church got its cruciform plan when transepts were added around 1615-1623.
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The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.