Together with the cloister and the mortuary, the two-aisled Eichstätt cathedral is regarded as one of the most important medieval monuments in Bavaria. The first Roman Catholic cathedral of Our Lady and Sts. Willibald and Salvator was built in the 8th century. It was destroyed during the Hungarian invasions but the church preserved. Parts of this church have been preserved in the masonry.
The current cathedral has parts built between the 11th century and the 16th century. Bishop Heribert (1022-1042) started the construction in Carolingian-Ottonian style and bishop Gundekar II inaugurated the cathedral in 1060.
The Gothic west choir dates from 1250-1270. The east choir was reconstructed in the late 14th century. The Roritzerkapelle (1463-1480) and cloister (1410) where added later.
The west façade was restored in Baroque style in 1716-1718 and the pulpit was made in 1720. The rococo altar dates from 1745.
References: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.