The Russalka Memorial is a bronze monument sculpted by Amandus Adamson, erected on 7 September 1902 in Kadriorg, Tallinn, to mark the ninth anniversary of the sinking of the Russian warship Rusalka, or Mermaid, which sank en route to Finland in 1893. The monument depicts an angel holding an Orthodox cross towards the assumed direction of the shipwreck. The model for the angel was the sculptor's housekeeper Juliana Rootsi, whose grandson is the politician Tiit Made.
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.