The 14.3-acre (58,000 m2) Somme American Cemetery and Memorial is a war cemetery established in October 1918 on ground which saw heavy fighting just before and during the Battle of St Quentin Canal. It contains the graves of 1,844 of the United States' military dead from World War I. Most lost their lives in the assault on the Hindenburg Line while serving in American II Corps attached to the British Fourth Army. Others were killed in operations near Cantigny. The headstones, set in regular rows, are separated into four plots by paths that intersect at the flagpole near the top of the slope. The longer axis leads to the chapel at the eastern end of the cemetery.
A massive bronze door surmounted by an American eagle leads into the chapel, whose outer walls contain sculptured pieces of military equipment. Once inside, light from a cross-shaped crystal window above the marble altar bathes the subdued interior with light. The walls bear the names of 333 of the missing. Rosettes mark the names of those since recovered and identified.
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.