Aquis Segeste, a 25-hectare Roman spa town, was located near the Loing River, between the territories of the Sénons and Carnutes. Its occupation predates the Roman conquest, but it flourished under the Flavian dynasty (69-96 AD) and reached its peak in the 2nd century. After 275 AD, it declined and was either destroyed or abandoned in the 4th century.
Rediscovered in the 19th century, it was initially mistaken for Vellaunodunum. In 1917, Jacques Soyer correctly identified it using the Tabula Peutingeriana. Major excavations took place between 1963 and 2005, uncovering a sanctuary, baths, a theater, and a city organized around a sacred spring.
Classified as a historical monument in 1986, it remains an important archaeological site.
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.