Ministry of Defence Main Building

The Privy Garden of the Palace of Whitehall was a large enclosed space in Westminster, London, that was originally a pleasure garden used by the late Tudor and Stuart monarchs of England. It was created under Henry VIII and was expanded and improved under his successors, but lost its royal patronage after the Palace of Whitehall was almost totally destroyed by fire in 1698. From the start of the 18th century onwards, the garden went through major changes as it fell into neglect. It was painted in 1747 by Canaletto during a period of transition, as Westminster was being transformed by the construction of new buildings and roads. By the start of the 19th century it had been redeveloped as the site for a row of townhouses, some of which were occupied by prime ministers seeking homes near the government buildings nearby. The last remnants of the Privy Garden were destroyed in 1938 during the construction of government offices which now house the Ministry of Defence's headquarters building.

Pembroke House, located on Whitehall, was the London residence of the earls of Pembroke.

The Palace of Whitehall – also spelled White Hall – at Westminster was the main residence of the English monarchs from 1530 until 1698, when most of its structures, with the notable exception of Inigo Jones's Banqueting House of 1622, were destroyed by fire. Henry VIII moved the royal residence to White Hall after the old royal apartments at the nearby Palace of Westminster were themselves destroyed by fire. Although the Whitehall palace has not survived, the area where it was located is still called Whitehall and has remained a centre of the British government. White Hall was at one time the largest palace in Europe, with more than 1,500 rooms, overtaking the Vatican, before itself being overtaken by the expanding Palace of Versailles, which was to reach 2,400 rooms. At its most expansive, the palace extended over much of the area bordered by Northumberland Avenue in the north; to Downing Street and nearly to Derby Gate in the south; and from roughly the elevations of the current buildings facing Horse Guards Road in the west, to the then banks of the River Thames in the east (the construction of Victoria Embankment has since reclaimed more land from the Thames)—a total of about 23 acres (9.3 ha). It was about 710 yards (650 m) from Westminster Abbey.

The Banqueting House, Whitehall, is the grandest and best known survivor of the architectural genre of banqueting house, which were constructed for elaborate entertaining. It is the only remaining component of the Palace of Whitehall, the residence of English monarchs from 1530 to 1698. The building is important in the history of English architecture as the first structure to be completed in the neo-classical style, which was to transform English architecture.Begun in 1619 and designed by Inigo Jones in a style influenced by Andrea Palladio, the Banqueting House was completed in 1622 at a cost of £15,618, 27 years before King Charles I of England was beheaded on a scaffold in front of it in January 1649. The building was controversially re-faced in Portland stone in the 19th century, though the details of the original façade were faithfully preserved. Today, the Banqueting House is a national monument, open to the public and preserved as a Grade I listed building. It is cared for by an independent charity, Historic Royal Palaces, which receives no funding from the British Government or the Crown.

The Iraq and Afghanistan Memorial in London commemorates British citizens, including both military personnel and civilians, who participated in the Gulf War, the Afghanistan War and the Iraq War. In these three conflicts, which took place between 1990 and 2015, 682 British service personnel lost their lives. A work by the sculptor Paul Day, the memorial is situated in Victoria Embankment Gardens, between the River Thames and the headquarters of the Ministry of Defence, in the vicinity of monuments commemorating the Second World War and the Korean War.

The Fleet Air Arm Memorial, sometimes known as Daedalus, is a war memorial in London, commemorating the service of the Royal Naval Air Service and the Fleet Air Arm from their establishments in 1914 and 1924 respectively, in the First World War, the Second World War, the Korean War, the Falklands War and the Gulf War, including over 6,000 killed in all conflicts. The service of the Fleet Air Arm is also commemorated at the National Memorial Arboretum in Staffordshire, at the former base of the Fleet Air Arm at HMS Daedalus in Lee-on-the-Solent, and at the Church of St Bartholomew, Yeovilton. The memorial comprises a thin stone column on which stands a bronze statue of a naval airman, wearing a flying suit and helmet, and with wings attached to his arms like Daedalus from Ancient Greek mythology, resembling a winged victory or an angel. The base of the memorial has a gilded inscription of the name and insignia of the Fleet Air Arm. It also bears the names of battles where the units fought, a dedication "To the everlasting memory of all the men and women from the United Kingdom the British Commonwealth and the many Allied Nations who have given their lives whilst serving in the Royal Naval Air Service and the Fleet Air Arm", and a quotation from Psalm 18:10: "He rode upon a cherub and did fly yea he did fly upon the wings of the wind". It was designed by James Butler. It was unveiled on 1 June 2000 by Charles, Prince of Wales, and stands in Victoria Embankment Gardens, between the River Thames and the headquarters of the Ministry of Defence, facing the Royal Air Force Memorial. Also nearby are the Korean War Memorial, the Iraq and Afghanistan Memorial, the Chindit Memorial, and the Battle of Britain Monument.

Horse Guards Avenue is a road in the City of Westminster, London, linking the major thoroughfares of Whitehall and Victoria Embankment, to the east of the Horse Guards building and parade area. The entrance of the Main Building of the Ministry of Defence (MoD), flanked by its monumental Earth and Water statues, opens onto the Avenue. A statue of a Gurkha soldier, unveiled in 1997, stands as a memorial in front of the Ministry of Defence.

Gwydyr House (Welsh: Tŷ Gwydyr) is a Grade II* listed mansion in Whitehall, and is the London headquarters of the Office of the Secretary of State for Wales. The house lies on the eastern side of the street, opposite Dover House.

The statue of William Slim, 1st Viscount Slim in Whitehall, London, is a work of 1988–1993 by the sculptor Ivor Roberts-Jones. It is one of three memorials to British military leaders of World War II on Raleigh Green, outside the Ministry of Defence's Main Building, the others being Oscar Nemon's 1980 statue of Lord Montgomery and Roberts-Jones's statue of Lord Alanbrooke, erected later in 1993. Slim's bronze statue stands approximately 3 metres (9.8 ft) high on a pedestal of Portland stone.

The statue of Alan Brooke, 1st Viscount Alanbrooke by Ivor Roberts-Jones was unveiled in Whitehall, London in 1993.

The Royal United Services Institute (RUSI, Rusi), registered as Royal United Service Institute for Defence and Security Studies and formerly the Royal United Services Institute for Defence Studies, is a British defence and security think tank. It was founded in 1831 by the Duke of Wellington, Sir Arthur Wellesley.The current President of RUSI is the Duke of Kent and its Director-General is Karin von Hippel.

A memorial to the British soldiers in the Korean War was unveiled in Victoria Embankment Gardens, between the River Thames and the Ministry of Defence headquarters in London, England, in December 2014. The memorial, a bronze statue of a British soldier by the sculptor Philip Jackson, with a Portland stone obelisk on a Welsh slate base, was a gift from the Government of South Korea and was unveiled in a ceremony led by Prince Richard, Duke of Gloucester.