Carlsberg center is located in Valby at the location of the first Carlsberg Brewery. The visitor centre will give you an idea of how the world-famous Carlsberg Beer is made. Carlsberg is among the largest tourist attractions in Copenhagen. The Old Carlsberg Brewery from 1847 has been converted into a modern centre for visitors which exhibits the history of the beer.
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.