The Red Tower (which is actually white) is the only defence tower left from medieval Hanseatic city of New-Pärnu. It is the oldest city’s architectural monument and was used as the prison. According to the chronics, in 14th century Pärnu was encircled by a fortified wall with many towers: the round Viliand Tower, also know as the White Tower, in the north-eastern corner and Red Tower in the south-eastern corner. There may have been also the Holy Spirit’s Tower. After a well-needed reconstruction in 1893 it acquired its current look.
The tower got it's name by the red lining covering both its inside and outside. In 1624, the tower had four floors and a six meter deep prison floor. Three floors been preserved. Red Tower was restored in 1973-1980 without it's original brick lining.
References: Visit Pärnu, Meeting.lv
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.