The perfectly preserved Romanesque church of Celles is thought to be prior to the 12th century. The crypt, located under the choir, probably dates back to the 9th century. The crypt is built in the shape of a Latin cross with three naves and 2 rows of pillars.
In the church tower, you can admire a very ancient roman inscription, which is thought to date from the reign of the emperor Probus (279).
This remarkable monument is definitely worth a visit, even if it were just for the sake of admiring the stalls, the font and the holy water font both from the 12th century. It equally boasts rather interesting tombstones, namely one in black marble, which houses the remains of Rasse de Celles and his wife.
The church of Celles is open to the public all year round. It is remarkably well preserved, and considered as one of the finest examples of Mosan Romanesque architecture. Built with limestone and sandstone rubble, it is thought to be prior to the 12th century, while the crypt, located under the choir, is thought to date from the 9th century. The church has the shape of a Latin cross, with three naves and two rows of pillars.
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.