Arlington National Cemetery is one of the most famous cemeteries in the world. The United States military cemetery was established during the Civil War on the grounds of Arlington House, which had been the estate of the family of Confederate general Robert E. Lee's wife Mary Anna Lee. On June 15, 1864, the Arlington House property and 200 acres of surrounding land were designated as a military cemetery as Quartermaster General Montgomery C. Meigs wanted to ensure that Lee could not return to the site.
Today the cemetery is the final resting place for more than 300,000 veterans died in every American conflict, from the Revolutionary War to Iraq and Afghanistan.
The first soldier to be buried in Arlington was Private William Henry Christman of Pennsylvania on May 13, 1864. The most famous people buried to Arlington are Presidents William Howard Taft and John F. Kennedy. Also Kennedy's two brothers, Senator Robert F. Kennedy and Senator Edward 'Ted' Kennedy, and General of the Armies John J. Pershing are buried there.
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.