Kumla Church was built around 1300 and included a longhouse and a small bell tower. In the end of the 15th century the wood roof was replaced by a brick star vaults. In the 18th century they made the windows bigger and built the bell tower. The church is famous for its beautiful frescoes by Albertus Pictor painted in 1482. The stained glass windows in the choir are the work of the Västerås artist Nils-Aron Berge from 1960.
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.