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Founded: 1675-1686Category: Castles and fortifications in Estonia
Historical period: Part of the Swedish Empire (Estonia)
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So-called Tallinn Gate is the only remaining 17th century gate of the city wall in Baltic Countries. It was built between 1675 and 1686 and designed probably by Swedish Erik Dahlberg. During the teardown of the fortification in the 19th century only the Tallinn Gate was preserved, as well as the embankments and the trench that leads to the Venuse Bastion at the riverside - the so called Vallikäär.
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.