The Befreiungshalle (Hall of Liberation) is a neoclassical monument on the Michelsberg hill above the town of Kelheim. It stands upstream of Regensburg on the river Danube at the confluence of the Danube and the Altmühl.
King Ludwig I of Bavaria ordered the Befreiungshalle to be built in order to commemorate the victories against Napoleon during the Wars of Liberation that lasted from 1813 to 1815.
The construction was started in 1842 by Friedrich von Gärtner in a mixture of Neoclassical and Christian styles. It occurred on Michelsberg, in a place previously occupied by a part of the ruins of a pre-historic fortification or town, thought by some to have been Alcimoennis. At the behest of the King, Leo von Klenze later altered the plans and completed the building in 1863.
The powerful-looking rotunda made of Kelheim limestone rests on a three-tier base, which is designed as an octadecagon. The outer facade is divided by 18 pillars with 18 colossal statues by Johann Halbig as allegories of the German tribes that took part in the battles. These are: 'Franconian, Bohemian, Tyrolean, Bavarian, Austrian, Prussian, Hanoverian, Moravian, Saxony, Silesian, Brandenburger, Pomeranian, Mecklenburg, Westphalia, Hesse, Thuringian, Rhinelander, Swabia' (circulating in this order with an arbitrary start).
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.