Tarbes Cathedral was established during the 12th century. There remain two apses of the choir. A first extension was made in the 14th century by the addition of a Gothic nave. Its extension extended until the 18th century with the outer span. The cathedral resembles a fortress as it was built with round pebbles from the river Adour which have also been used for the construction of many houses in Tarbes. It can accommodate up to 600 people.
A large baroque canopy in marble from the 18th century houses as the main altar.
The cathedral also includes a chapel of the Blessed Virgin in which visitors can read the testament of Louis XVI engraved on a black marble wall three meters high. Another peculiarity is that there is a treasure house and within there are ornaments, chasubles and old bishops' sticks.
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.