Joan of Arc, also known as Jeanne d'Arc, (1412-1431) was a national heroine of France and is a saint of the Roman Catholic Church. She asserted that she had visions from God which told her to recover her homeland from English domination late in the Hundred Years' War. Also known as the Maid of Orléans, she (according a legend) liberated city of Orléans from the siege of English in 1429.
Today there is a small museum dedicated to Orléans's favorite mademoiselle. The house is a 20th century reproduction of the half-timbered 15th century house where Joan of Arc stayed during her heroics. The original house was much modified, but then destroyed by bombing in 1940. The first floor has temporary exhibitions, and the second and third floors contain Joan-related models and memorabilia.
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.