Memento Park is an open-air museum in Budapest, dedicated to monumental statues from Hungary's Communist period (1949–1989). There are statues of Lenin, Marx, and Engels, as well as several Hungarian Communist leaders. The park was designed by Hungarian architect Ákos Eleőd, who won the competition announced by the Budapest General Assembly in 1991.
Memento Park is divided into two sections: Statue Park, officially named “A Sentence About Tyranny” Park after a poem of the same name by Gyula Ilyés, and Witness Square (also called 'Neverwas Square'). Statue Park houses 42 of the statues that were removed from Budapest after the fall of communism. Witness Square holds a replica of Stalin's Boots which became a symbol of the Hungarian Revolution of 1956 after the statue of Stalin was pulled down from its pedestal in 1956.
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.