The Koski Mehmed Pasha Mosque in Mostar represents another extraordinary piece of Ottoman architecture in Bosnia and Herzegovina. It was built in 1618/1619 and represents the large construction of the classical Ottoman architecture in Bosnia and Herzegovina.
During the war in Bosnia (1992-95), it was badly damaged by the Croatian military forces, and its restoration took place during 1996-2001. The Mosque used to have an extraordinary collection of the manuscripts of the Qur'an, from which some were preserved but today they belong to other collections. The Mosque also possesses the carpet which was the gift from Austrian monarch Franjo Josip. The Koski Mehmed Pasha Mosque represents also one of the most popular touristic destinations in Mostar.
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.