The Kelten museum in Manching provides a window to the spectacular excavations of the Celtic city of Manching and the Roman fortress of Oberstimm. As a branch museum of the Archäologische Staatssammlung München, it presents outstanding finds of the Iron Age and the Roman imperial period. The modern museum built in 2006 is situated directly at the original historical site, which can be explored on an archaeological trail.
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.