Siege of Belgrade (1717)

The Belgrade Fortress (Serbian Cyrillic: Београдска тврђава, romanized: Beogradska tvrđava), consists of the old citadel (Upper and Lower Town) and Kalemegdan Park (Large and Little Kalemegdan) on the confluence of the Sava and Danube rivers, in an urban area of modern Belgrade, Serbia. Located in Belgrade's municipality of Stari Grad, the fortress costitutes the specific historical core of the city. As one of the most important representatives of Belgrade's cultural heritage, it was originally protected right after World War II, among the first officially declared cultural monuments in Serbia. The fortress was declared a Monument of Culture of Exceptional Importance in 1979, and is protected by the Republic of Serbia. It is the most visited tourist attraction in Belgrade, with Skadarlija being the second. Since the admission is free, it is estimated that the total number of visitors (foreign, domestic, citizens of Belgrade) is over 2 million yearly.

Damat Ali-Paša's Turbeh is an Ottoman mausoleum erected in 1784 in Belgrade, Serbia. It held the body of the vizier Silahdar Damat Ali Pasha. The building is situated in the Upper Town of the Belgrade Fortress. Along with Sheik Mustafa's Tomb, this monument represents one of the only remaining examples of Islamic funerary architecture in Belgrade.

Mehmed Paša Sokolović's Fountain (Serbian: Чесма Мехмед-паше Соколовића, romanized: Česma Mehmed-paše Sokolovića) is an Ottoman era fountain in Belgrade. It is located next to the Defterdar's Gate near the northwestern wall of the Upper Town of Belgrade Fortress. Evliya Çelebi states that the fountain was erected in 1576/77, during the lifetime of Grand Vizier Меhmed Paša Sokolović and it is his only surviving endowment in Belgrade. The precise position of the fountain does not appear in any cartographic sources until the 17th century. The earliest sketch dates back to a plan from the National Library in Paris from the early 17th century, in which the fountain was presented as a rectangular structure with three free sides.

The Military Museum (Serbian: Војни музеј, romanized: Vojni muzej) is a museum located in Belgrade, Serbia. Founded in 1878, the museum has over 3,000 ancient and modern items. These include Roman swords and helmets, Greek helmets and daggers, Serbian heavy knight's armor, axes, shields, helmets, crossbows, armoured gloves, as well as Western medieval weapons. There are also more modern guns, firearms, and elements of soldier's uniforms and equipment. Dioramas, plaques, and displays illustrate the use and historical context of the museum's collection. Inside the museum's main building, the exhibits are found in a single long hall progressing from ancient through medieval and then towards modern. All exhibits are labeled in the Serbian Language in both Cyrillic and Latin, as well as English. Outside the museum's main building, there are numerous tanks, howitzers, and armoured cars of many types. Some were acquired during World War II, when they were captured by the Red Army and Yugoslav Partisans from retreating Nazi and Axis forces (Belgrade Offensive). These decommissioned tanks and artillery pieces line the walls and paths leading into the Military Museum from two directions. Recent exhibits address NATO actions against Serbia in 1999, including the controversial use of cluster bombs, depleted uranium, and graphite bombs, some of which are claimed to be in violation of international law. A well-known exhibit features parts of a US F-117 stealth aircraft which was downed by a Serbian S-125 Neva/Pechora. The Military Museum is located inside the walls of the historic Belgrade Fortress, situated at the confluence of the Sava and Danube rivers. The Belgrade Fortress is located within a popular park known as the Kalemegdan Park, near the center of the city.

Ivan Ribar (23 April 1916 – 27 November 1943), known as Ivo Lola or Ivo Lolo, was a Yugoslav communist politician and military leader of Croatian descent. In the 1930s, he became one of the closest associates of Josip Broz Tito, leader of the Yugoslav Communist Party. In 1936, Ribar became secretary of the Central Committee of SKOJ (Young Communist League of Yugoslavia). During World War II in Yugoslavia, Ribar was among the main leaders of the Yugoslav Partisans and was a member of the Partisan Supreme Headquarters. During the war, he founded and ran several leftist youth magazines. In 1942, Ribar was among the founders of the Unified League of Anti-Fascist Youth of Yugoslavia (USAOJ). He was killed by a German bomb in 1943 near Glamoč while boarding an airplane for Cairo, where he was to become the first representative of Communist Yugoslavia to the Middle East Command.In 1944, Ribar was awarded the title of People's Hero of Yugoslavia. Lola was the older of two sons of Ivan Ribar, the first President of Yugoslavia. His brother was another People's Hero, Jurica Ribar.

Tomb of People's Heroes (Serbian: Гробница народних хероја, romanized: Grobnica narodnih heroja) in Belgrade is located underneath the walls of the Belgrade Fortress. It holds the remains of four recipients of the Order of the People's Hero of SFR Yugoslavia. It was built in 1948. Remains of Ivo Lola Ribar (1916–1943) and Ivan Milutinović (1901–1944) were buried there on 29 March 1948. Remains of Đuro Đaković (1886–1929) were buried on the 20th anniversary of his death on 29 April 1949. Moša Pijade (1890–1957) was buried in the tomb in March 1957. Stevan Bodnarov, a sculptor from Belgrade, designed the busts of Ivo Lola Ribar, Ivan Milutinović and Đuro Đaković in 1949. The bust of Moša Pijade was designed by Slavoljub Stanković in 1959. The tomb was declared Monument of Culture by the City Assembly of Belgrade in 1983.

Belgrade Planetarium (Serbian: Београдски планетаријум, Beogradski planetarijum) is one of two planetariums in Serbia. It is located in Belgrade and is operated by the Astronomical Society Ruđer Bošković. Before 1967 it was known as the "Turkish bath in Lower Town".

The Despot Stefan Tower (Serbian: Деспотова кула; Despotova kula) or Dizdar Tower (Диздарева кула; Dizdareva kula) is a structure in Belgrade, Serbia, built ca. 1405, a couple of years after the city became the capital of Serbian Despotate under Despot Stefan Lazarević. In May 1963, representatives of the city administration, Institute for the protection of the cultural monuments and members of the astronomical societies, agreed to adapt the Dizdar Tower into an observatory. Works began in May, instruments were to be installed by autumn, and the observatory was to become operational in October 1963.Today, the tower is the seat of the Astronomical Society Ruđer Bošković and houses its Popular Observatory. The Observatory has two instruments: refractor Zeiss (110/2200mm) and reflector Tall 200 K (200/2200mm), both of which are used mainly for observations at night. Four panoramic telescopes are also mounted on the tower, which can be used to observe the panorama of Belgrade.

The Big Staircase in Kalemegdan Park (Serbian: Велико степениште у Калемегданском парку, romanized: Veliko stepenište u Kalemegdanskom parku) is the most monumental park motif in Kalemegdan Park. It occupies the area in the southwest frontline of the fortress, on the location of the former rampart and a hidden road.

Monument of Gratitude to France (Serbian: Споменик захвалности Француској, romanized: Spomenik zahvalnosti Francuskoj) in Belgrade's Veliki Kalemegdan Park was formally unveiled on 11 November 1930, the 12th anniversary day of the end of the First World War, in the presence of King Alexander and Queen Maria, the royal government, the delegation of the French government, Serbian war veterans, distinguished citizens, associations, schools, and a large crowd of people.It was noted as one of the first "public monuments on one national territory, where the perception of another (nation) is shown in positive light". It was declared a cultural monument in 1965, and a cultural monument of great significance in 1983.

Ružica Church (Serbian Cyrillic: Црква Ружица, romanized: Crkva Ružica, lit. ''Little Rose Church'') is a Serbian Orthodox church located in the Belgrade Fortress, in Belgrade, the capital of Serbia. Original church was built in the early 15th century, while the modern one was adapted in 1869 and fully reconstructed in 1925. It is dedicated to the Nativity of Mary. With its location within the fortress and water spring of Saint Petka, constant crowds of visitors especially on Saint Petka's feast day, and unorthodox appearance, it is considered one of the "best loved churches among the adherents".

The Chapel of Saint Petka in Belgrade is a chapel, erected over a sacred spring, and dedicated to Saint Petka. It is located at a way connecting the upper and the lower city of the Belgrade Fortress, in proximity of the Ružica Church, with the spring being in the very altar of the chapel. The today's chapel is built in 1937 after a project of the architect Momir Korunović. Its inner walls and vaults are covered by mosaics done by painter Đuro Radulović in 1980-83.