Likava Castle (Likavský hrad) was referred to for the first time in 1315. Its construction started with the intention to have a guarding point over the passage across the river Váh and the trade route from the Váh Basin to Orava and further to Poland.
The castle owners, the noble family of Hunyady, gradually reconstructed and widened the core of the Castle and built the part called the lower castle in the second half of the 15th century. In the second half of the 17th century, the Thökölys" eventually finished the entire fortification system though it was of no use as it did not prevent the disaster at the beginning of the 18th century when the retreating troops of František Rákoczi completely pulled down the castle in 1707.
Likava castle gradually decayed in ruins. After a thorough reconstruction in recent year the tower Hunyadyho veža was opened to public. It contains the exhibition of the Castle history.
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.