Martin Luther's Birth House (Martin Luthers Geburtshaus) is a museum in Eisleben, Germany. The actual house in which Luther was born no longer exists, it having been burnt completely to the ground in 1689.
The German religious reformer Martin Luther was born there in 1483. Opened to the public in 1693, it is a World Heritage Site. In 2005-2007 an expansion was added for visitors; the ensemble has since received five architectural awards.
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.