Cales Coves is an emblematic and spectacular prehistoric necropolis, both for its setting and for the large number of tombs in it. They take the form of a set of cavities excavated from the rock walls of the ravines and coastal cliff faces (about 90 altogether), used by local communities to bury their dead. Several types of cave have been documented. The necropolis was used for about 1000 years, from the 11th century BCE up until the Romans took control.
In the Roman era, despite no longer being in use as a necropolis, a series of inscriptions on the cave walls testify to their use as a place of pilgrimage, as can be seen in the famous Cova deis Jurats. Calescoves was also a major anchorage port, especially between the 4th century B.C. and the 6th century A.D., with ships arriving from powerful trading nations along the Mediterranean coast.
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.