Straßburg Castle fas first time mentioned in 1147. It was built by Roman I, the bishop of Gurk. The chapel was built in the late 12th century, consisting of nave, chancel and apse. In the 14th century, the chapel was raised by one floor, and another floor was erected in the 15th century above the choir. The last modification to to the choir took place in 1682.
In the 14th century, the eastern tower was built on the outside of the northern ring wall. There is a medieval kitchen, still preserved. The western tower (Münzturm) was built in the 15th century.
Today Straßburg castle hosts a folkloristic collection exhibiting objects from rural life of past centuries. The exhibition Women’s Artworks of the Werkmann collection shows unique exhibits from the past 200 years with needlework of rural life, nobility and bourgeoisie.
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.