Danish National Archives

Slotsholmen (English: The Castle Islet) is an island in the harbour of Copenhagen, Denmark, and part of Copenhagen Inner City. The name is taken from the successive castles and palaces located on the island since Bishop Absalon constructed the city's first castle on the island in 1167 at the site where Christiansborg Palace lies today. Recognised as the centre of the Government of Denmark since the Middle Ages, the island is sometimes referred to as 'the Island of Power' (Magtens Ø), and is lined with central government institutions and ministries; the name Slotsholmen is thus also frequently used as a metonym for overall Danish governmental administration. The island is dominated by the vast Christiansborg Palace which houses the Danish Parliament, the Supreme Court of Denmark, the Prime Minister's Office and the State Rooms of the Queen. Also located on the island are the most important ministries, the Danish National Archives, the Royal Danish Library, several museums and the historic buildings of the Christian IV's Stock Exchange, the Chancellery and Christian IV's Brewhouse.The population number was 18 people as of 1 January 2020.

The National Museum of Photography (Nationale Fotomuseum) is located in the Black Diamond, a modern waterfront extension to the Royal Danish Library in Copenhagen.

The second Christiansborg Palace was a new main residence for the Danish Monarch built from 1803 to 1828 in Copenhagen as a replacement for the first Christiansborg Palace which had been destroyed by fire in 1794. The new palace was constructed on Slotsholmen, on the ruins of its predecessor, and designed by royal master builder Christian Frederik Hansen. By the time the palace was completed, King Frederick VI had found himself comfortable at his temporary residence at Amalienborg Palace and decided he did not want to live in the new palace after all. He only used the royal premises for entertainment. The palace also housed the Parliament and administrative services. Frederik VII was the only monarch to live in the palace. This was between 1852 and 1863.

The first Christiansborg Palace in Copenhagen, Denmark, was built on Slotsholmen in 1745 as a new main residence for King Christian VI of Denmark. It was built on the same site as its predecessor, Copenhagen Castle, which had assumed a monstrous appearance and started to crumble under its own weight after several extensions. The palace existed for just under half a century since it was almost completely destroyed by a fire in 1794. The surviving parts, which included the show grounds, the court theatre and the Marble Bridge with its two pavilions, were incorporated into the second Christiansborg Palace which succeeded it. These parts also survived the fire of 1884 which destroyed the second palace and are now part of the present day Christiansborg Palace which houses both the Danish Parliament, Supreme Court and Prime Minister's Office.

Christiansborg Slotsplads (English: Christiansborg Palace Square) is a public square on the island of Slotsholmen in the centre of Copenhagen, Denmark. It is located in front of Christiansborg Palace. Due to its large size, central location and close affiliation with the central government building, it has for centuries been a hub of political life in Denmark and is a popular venue for a variety of demonstrations, celebrations and events.

The Royal Library Garden (Danish: Det Kongelige Biblioteks Have), often referred to simply as the Library Garden, is a small, somewhat hidden garden between the Royal Library, the Tøjhus Museum, ChristianIV's Supply Depot and Christiansborg Palace on Slotsholmen in central Copenhagen, Denmark. It has a reputation for being one of the most tranquil spots in the city centre. The garden has a shallow water basin with a water feature in the middle, blooming flower beds and large shady trees. It is accessible from the courtyard at Christiansborg's show grounds.

Absalon's Castle, (Danish: Absalons borg) was a fortification on the island of Slotsholmen in Copenhagen, located at the site of the later Copenhagen Castle and Christiansborg Palace. According to the chronicler Saxo Grammaticus, the castle was founded by Bishop Absalon in 1167 to protect the emerging city of Copenhagen. The castle survived for 200 years before it was destroyed in 1369 by the Hanseatic League, who first occupied and plundered it, and then demolished it completely. The castle was made up by a curtain wall, encircling an enclosed courtyard with several buildings such as the bishop's residence, a chapel and several minor buildings. The ruins of Absalon's Castle can be seen today in the subterranean excavations under Christiansborg Palace.

Blåtårn (in English: Blue Tower) was a tower in Copenhagen Castle, the Danish royal family's palace in Copenhagen, Denmark. The tower was used as a dungeon and has been known as such in history. It is not known when the tower was built, but it is known to have existed during the reign of King John I of Denmark (reign 1481-1513). It existed from at least the late 15th century until destroyed in 1731-32.

The Danish War Museum (Danish: Krigsmuseet) is a museum of military history and arms on Slotsholmen in central Copenhagen, Denmark. It is located in Christian IV's Arsenal (Danish: Tøjhuset), from which it takes its former name. On 1 July 2018, the name was changed from the Royal Danish Arsenal Museum (Danish: Tøjhusmuseet) to The Danish War Museum, in order to make it easier for guest to discern the nature of the museum.

Christian IV's Arsenal (Danish: Christian IV's Tøjhus), is a historic building on Slotsholmen in central Copenhagen, Denmark. It was built by Christian IV of Denmark in 1604 as part of a grand scheme for the construction of a new naval harbour. The arsenal, along with several other buildings, surrounded the harbour basin which was connected to the main harbour by a narrow canal. Later, when ships became too large to enter the harbour, the fleet moved to Bremerholm and the decommissioned naval harbour was later filled in. Today Christian IV's Arsenal houses the Tøjhus Museum, a museum of weapons and military history, while the site of the former naval harbour has become the Royal Library Garden.

Slotsholmsgade (literally "Slotsholm Street") is a street which runs along the rear side of Børsen on Slotsholmen in central Copenhagen, Denmark. Located next to the Danish parliament building Christiansborg, most of the buildings in the street house government offices. Several of them date from the 17th and 18th century and are listed.

The Folketing (Danish: Folketinget, pronounced [ˈfʌlkəˌtsʰe̝ŋˀð̩]; lit. 'The people's thing' or 'People's assembly'), also known as the Parliament of Denmark or the Danish Parliament in English, is the unicameral national legislature (parliament) of the Kingdom of Denmark—Denmark proper together with the Faroe Islands and Greenland. Established in 1849, until 1953 the Folketing was the lower house of a bicameral parliament, called the Rigsdag; the upper house was the Landsting. It meets in Christiansborg Palace, on the islet of Slotsholmen in central Copenhagen. The Folketing passes all laws, approves the cabinet, and supervises the work of the government. It is also responsible for adopting the state's budgets and approving the state's accounts. As set out in the Constitution of Denmark, the Folketing shares power with the reigning monarch. In practice, however, the monarch's role is limited to signing laws passed by the legislature; this must be done within 30 days of adoption. The Folketing consists of 179 MPs; including two from Greenland and two from the Faroe Islands. General elections must be held every four years, but it is within the powers of the Prime Minister to ask the monarch to call for an election before the term has elapsed. On a vote of no confidence, the Folketing may force a single Minister or the entire government to resign.Members are democratically elected by proportional representation: 135 directly in constituencies using the D'Hondt method and with 40 leveling seats. The Danish political system has traditionally generated coalitions. Most post-war governments have been minority coalitions ruling with the support of non-government parties. The first sitting of the house is usually attended by Queen Margrethe II.