Sielecki Castle is located on the left bank of the Czarna Przemsza River. Originally a defensive fortification, the castle expanded in 1620 into a four-wing complex with corner towers, perhaps using earlier buildings. The castle was built of broken limestone and brick. Storey building with basement. After the fire in 1824, the castle was rebuilt in 1832, but the east wing with the entrance gate was demolished and the moats were filled. Despite these changes, the original defensive character is evidenced by the shape of the block, four corner towers and projections on the extension of the side wings. It is currently a three-winged building with an open courtyard.
In 1994 the city of Sosnowiec took over the destroyed castle. Currently, the castle houses the Sosnowiec Art Center. This local government institution co-creates the cultural life of the city by organizing exhibitions, concerts and various culture-forming meetings.
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.