The Philopappos Monument is an ancient Greek mausoleum and monument dedicated to Gaius Julius Antiochus Epiphanes Philopappos or Philopappus, (65–116 AD), a prince from the Kingdom of Commagene. It is located on Mouseion Hill in Athens, southwest of the Acropolis.
The monument was built on the same site where Musaios or Musaeus, a 6th-century BC priestly poet and mystical seer, was held to have been buried. The location of this tomb, opposite the Acropolis and within formal boundaries of the city, shows the high position Philopappos had within Athenian society
Philopappos’ monument is a two-storey structure, supported by a base. On the lower level there is a frieze representing Philopappos as a consul, riding on a chariot and led by lictors. The upper level shows statues of three men: of Antiochus IV on the left, of Philopappos in the centre and of Seleucus I Nicator, now lost, on the right.
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.