St. Boniface's Abbey is a Benedictine monastery founded in 1835 by King Ludwig I of Bavaria, as a part of his efforts to reanimate the country's spiritual life by the restoration of the monasteries destroyed during the secularisation of the early 19th century. The abbey, constructed in Byzantine style, was formally dedicated in 1850. It was destroyed in World War II and only partly restored. The church contains the tombs of King Ludwig I and of his queen, Therese of Saxe-Hildburghausen.
St. Boniface's is situated in a city, which is unusual for a Benedictine monastery. To ensure the material provision of the monks, King Ludwig bought the former Andechs Abbey, which had been secularised in 1803, along with its supporting farmlands and gave it to the new abbey. For this reason Andechs is now a priory of St. Boniface's Abbey.
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.