Roslags-Bro church was built of granite in the 13th century. It was built by an important sea-route, since disappeared as a consequence of the post-glacial rebound. Immured in the church is a runestone from the 11th century.
The tower was added in the 1400s and restored in 1700s. The church is famous due its fine sculptures. The wooden sculpture of Eric IX of Sweden, made in France in 1200s, has been model to Stockholm city coat of arms. The crucifix made in Gotland and font date also from the 13th century. The altar and other saint sculptures date from the 15th century.
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.