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The building of the "Youth Home" Restaurant was erected in 1890. At first, the "Bulevar" restaurant was situated in the building. The Army General Staff bought the building in 1903 and turned it into an Officers' Home, which remained there until 1941. At the beginning of World War I this building was in the focus of public attention as the centre of the political life of Serbia. On December 7, 1914 a war session of the National Assembly was held there. On that occasion the Assembly made the "Niš Declaration", which explicitly stated the military objectives of Serbia - to fight for the liberation and unification of the Balkan peoples. On May 6, 1915 the Yugoslav Congress was held in this building. The Congress issued the "Niš Resolution" which once again emphasized the need for national unity.
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Over the remains of a Roman military camp, then Roman town called Naissus, and finally the remains of a destroyed Byzantine fortification, the Turks built a strong fortress at the beginning of 18th century. The construction of this fortress lasted from 1719 to 1723. It was built with the help of local laborers, Istanbul stonecutters and bricklayers. Beside those well saved walls and gates, numerous facilities remain from various periods, such as the armory, Turkish steam bath, Turkish post station, Bali-mosque, powderroom and prison.
Crveni Krst
The first Nazi concentration camp in the former Yugoslavia, constructed in 1941. One of the few fully preserved concentration camps in Europe, almost intact since 1944, 'Lager Nis' was the venue of the dramatic escape in February 1942 when about 100 prisoners managed to flee.
Cele kula
Skull Tower was built in the 19th century by the Turks from the skulls of the Serbs killed in the battle of Cegar, near Nis, in May 1809. It is rectangular, about 3 m high and was built from quicklime, sand and the skinned skulls, upon the order of Khurshid Pasha who had first sent the skulls filled with cotton to the Sultan in Istanbul. Each side of the tower has 14 rows with 17 openings where the skulls were embedded. There were 952 skulls, but today only 58 have remained. The rest were pulled out to be buried or were lost in time. In 1892 a chapel was built around the tower, according to the design of the Belgrade architect Dimitrie T. Leko. The skulls are situated inside the small chapel consisting of four glass walls. Europe came to know about this horrible monument of Serbian martyrdom from the work "Voyage to the East" by the French poet Alphonse de Lamartine (1790 - 1869).
a monumental sculpture representing three enormous fists was erected in honor of 10,000 people, mostly Serbs and Romanies, but also about 1,100 Jews, executed in this place during World War Two. The monument is the work of sculptor Ivan Sabolic and was erected in 1963.
The 4th-century birthplace of Emperor Constantine the Great. This ancient historical site is a testimony of the wealth and glory of the imperial Naissus . The remains of imperial palace, together with peristyle (range of surrounding columns) have been discovered. Luxury villas with mosaic floors, sacral objects (baptistery room), farming buildings with pithos, Roman bathrooms, water tanks, fort remains etc testify about Naissus culture and wealth from the times of Emperor Constantine the Great, who was born in Nis. Constantine is best remembered in modern times for three great achievements: the Edict of Milan in 313, which fully legalized Christianity in the Empire, the Council of Nicaea in 325, which made the Trinity the orthodox teaching, and the founding of Constantinople, today's Istanbul, in 330.
Church of Holy Trinity of Rusalia sits above the village of Gornji Matejevac. Rusalia is the most attractive ancient structure in Niš. The church was built after the order of a local Byzantine dignitary in the first half of 11th century.