Vyborg Old Cathedral is the oldest building in Vyborg, but today only some parts of its walls and the tower remain. The parish of Vyborg was established during the third crusade around the year 1293. There were several wooden churches the last one was destroyed by Novgorodians in 1411.
The construction of stone-made cathedral was began in 1430s and in was completed around 1445. The medieval appearance is unknown, because parts of the cathedral have been changed and demolished several times. The original nave was probably about 37m long and 20m wide. In addition to the main altar there were also few side altars. Unfortunately the interior is completely disappeared or destroyed in wars and reconstructions.
Some notable persons has been buried to the church like nobleman Erik Axelsson Tott and probably Mikael Agricola, the founder of written Finish language.
During the centuries the Vyborg cathedral was first Catholic, then Lutheran and during the Russian order also an Orthodox church. Peter the Great ordered to renovate it for Orthodox worships in 1720. In 1805 it was remodified as a magazine. In 1913 the cathedral was again restored and after the Independence of Finland it was moved once again Lutheran church. In the Winter War (1940) the aerial bomb hit the church and only walls survived.
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.