Josefov Fortress is a large historic defence complex of 18th-century military architecture in Jaroměř, Czech Republic. It was built between 1780 and 1787. Together with Terezín fortress, it was built for protection against attacks from Prussia, but its military importance, like other such fortresses built across Europe, was minimal as decisive battles were often fought elsewhere. In 1948 it became part of the town of Jaroměř.
Designed by the French architect Claude Benoît Duhamel de Querlonde and fortified by octagonal-shaped, bastion-like brick walls extending over 289 hectares, the fortress is a system of fortifications in the form of an amphitheatre with extensive three-storey deep underground corridors formed in cretaceous rocks, and running through a labyrinth of 45 kilometers, the likes of which cannot be found anywhere else in Europe. It had three distinct sections - the main fortress with its residential and public function, the lower Crown fortress with a fortified island, and a forward redoubt in Brdce fortress. The town had four gates. The dominant part of the whole Josefov Fortress is the Empire Church, which was built between 1805-10. It was designed by Heinrich Hatzinger, Julius D’Andreis and Franz Joseph Fohmann. Before that, there was a fountain in the same place, which was made by the Czech J. Malinský in 1817.
The Josefov fortress was originally named Ples, and only later, in 1793, was it renamed Josefov. In 1948 the fortress town was incorporated into Jaroměř and today it is an urban monument reservation preserving 18th-century military building techniques and classicist urbanism.
Over the years, the fortress has been converted into a residential district. The biggest extreme metal music festival in Central Europe, Brutal Assault, takes place here each August, with the music stages built against the outer walls. Metalheads from all over Europe occupy the fortress for four days each year.
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.