Canadian Police and Peace Officers' Memorial

The Library of Parliament (French: Bibliothèque du Parlement) is the main information repository and research resource for the Parliament of Canada. The main branch of the library sits at the rear of the Centre Block on Parliament Hill in Ottawa, Ontario. The library survived the 1916 fire that destroyed Centre Block. The library has been augmented and renovated several times since its construction in 1876, the last between 2002 and 2006, though the form and decor remain essentially authentic. The building today serves as a Canadian icon, and appears on the obverse of the Canadian ten-dollar bill. The library is overseen by the Parliamentary Librarian of Canada and an associate or assistant librarian. The Canadian Parliamentary Poet Laureate is considered to be an officer of the library.

The Parliament of Canada (French: Parlement du Canada) is the federal legislature of Canada, seated at Parliament Hill in Ottawa, and is composed of three parts: the King, the Senate, and the House of Commons. By constitutional convention, the House of Commons is dominant, with the Senate rarely opposing its will. The Senate reviews legislation from a less partisan standpoint and may initiate certain bills. The monarch or his representative, normally the governor general, provides royal assent to make bills into law. The governor general, on behalf of the monarch, summons and appoints the 105 senators on the advice of the prime minister, while each of the 338 members of the House of Commons – called members of Parliament (MPs) – represents an electoral district, commonly referred to as a riding, and are elected by Canadian voters residing in the riding. The governor general also summons and calls together the House of Commons, and may prorogue or dissolve Parliament, in order to either end a parliamentary session or call a general election. The governor general also delivers the Throne Speech at the opening of each new Parliament (the monarch occasionally has done so, instead of the governor general, when visiting Canada). The current Parliament, summoned by Governor General Mary Simon in November 2021, is the 44th Parliament since Confederation in 1867. The official languages of the Parliament are English and French.

The Canadian Parliament Buildings are the parliament buildings housing the Parliament of Canada, located on Parliament Hill, Ottawa, Ontario, Canada.

The Centre Block (French: Édifice du Centre) is the main building of the Canadian parliamentary complex on Parliament Hill, in Ottawa, Ontario, containing the House of Commons and Senate chambers, as well as the offices of a number of members of parliament, senators, and senior administration for both legislative houses. It is also the location of several ceremonial spaces, such as the Hall of Honour, the Memorial Chamber, and Confederation Hall. Built in the Gothic Revival style, the present Centre Block is the building's second iteration. The first was destroyed by fire in 1916; all that remains of the original building is the Library of Parliament, at the rear of the Centre Block. Though construction began immediately after the blaze, sculpting work on the interior continued through the 1970s. One of the most recognizable buildings in Canada, the Centre Block is depicted on the Canadian $10 bill (the Library of Parliament), $20 bill (the Peace Tower), and the $50 bill. On 12 December 2018, the Centre Block was closed for renovations that could last ten years or more.

The Victoria Tower was the prominent main bell tower of the original Centre Block parliament building in Ottawa, Ontario, Canada. The 55-metre-high (180 ft) tower was the centre piece of Parliament Hill that was constructed from 1859 to 1866 by Thomas Fuller. It was destroyed during the great fire of the Centre Block on 3 February 1916. Its replacement, the Peace Tower, was built on the same location but the design (larger clock face, ornamental Victoria High Gothic vs. simpler Modern Gothic) and height were radically changed. The original tower bore some similarities to the tower at the Parliament Building (Quebec) (still standing).

The Parole Board of Canada (French: Commission des libérations conditionnelles du Canada; formerly known as the National Parole Board) is the Canadian government agency that is responsible for reviewing and issuing parole and criminal pardons in Canada. It operates under the auspices of Public Safety Canada.

The Peace Tower (French: Tour de la Paix) is a focal bell and clock tower sitting on the central axis of the Centre Block of the Canadian parliament buildings in Ottawa, Ontario. The present incarnation replaced the 55-metre (180 ft) Victoria Tower after the latter burned down in 1916, along with most of the Centre Block; only the Library of Parliament survived. It serves as a Canadian icon and had been featured prominently on the Canadian twenty-dollar bill directly adjacent the queen's visage, until the change to polymer.

The House of Commons of Canada (French: Chambre des communes du Canada) is the lower house of the Parliament of Canada. Together with the Crown and the Senate of Canada, they comprise the bicameral legislature of Canada. The House of Commons is a democratically elected body whose members are known as members of Parliament (MPs). The number of MPs is adjusted periodically in alignment with each decennial census. Since the 2025 federal election, the number of seats in the House of Commons has been 343. Members are elected by simple plurality ("first-past-the-post" system) in each of the country's electoral districts, which are colloquially known as ridings. MPs may hold office until Parliament is dissolved and serve for constitutionally limited terms of up to five years after an election. Historically, however, terms have ended before their expiry and the sitting government has typically dissolved parliament within four years of an election according to a long-standing convention. In any case, an act of Parliament now limits each term to four years. Seats in the House of Commons are distributed roughly in proportion to the population of each province and territory. However, some ridings are more populous than others, and the Canadian constitution contains provisions regarding provincial representation. As a result, there is some interprovincial and regional malapportionment relative to the population. The British North America Act 1867 (now called the Constitution Act, 1867) created the House of Commons, modelling it on the British House of Commons. The lower of the two houses making up the parliament, the House of Commons, in practice holds far more power than the upper house, the Senate. Although the approval of both chambers is necessary for legislation to become law, the Senate only occasionally amends bills passed by the House of Commons and rarely rejects them. Moreover, the Cabinet is responsible primarily to the House of Commons. The government stays in office only so long as they retain the support, or "confidence", of the lower house. The traditional meeting chamber of the House of Commons is in the Centre Block of the Parliament Hill complex in Ottawa. However, as of 2026, Centre Block is undergoing renovations; the House of Commons is therefore meeting in a temporary chamber in the West Block of the complex.

Parliament Hill (French: Colline du Parlement), colloquially known as The Hill, is an area of Crown land on the southern banks of the Ottawa River in downtown Ottawa, Ontario, Canada. Its Gothic revival suite of buildings, and their architectural elements of national symbolic importance, is the home of the Parliament of Canada. Parliament Hill attracts approximately three million visitors each year. Law enforcement on Parliament Hill and in the parliamentary precinct is the responsibility of the Parliamentary Protective Service (PPS). Originally the site of a military base in the 18th and early 19th centuries, development of the area into a governmental precinct began in 1859, after Queen Victoria chose Ottawa as the capital of the Province of Canada. Following several extensions to the parliament and departmental buildings and a fire in 1916 that destroyed the Centre Block, Parliament Hill took on its present form with the completion of the Peace Tower in 1927. Since 2002, an extensive $3 billion renovation and rehabilitation project has been underway throughout all the precinct's buildings; work is not expected to be complete until after 2028.

The West Block (officially the Western Departmental Building; French: Édifice administratif de l'ouest) is one of the three buildings on Parliament Hill, in Ottawa, Ontario. Since 28 January 2019, it has housed the interim House of Commons Chamber, installed to accommodate the House while the Centre Block is closed. The West Block also houses offices for parliamentarians, a branch of the Library of Parliament, committee rooms, and some preserved pre-Confederation spaces. Built in the Victorian High Gothic style, the West Block has been extended twice since its original completion in 1865. Though not as renowned as the Centre Block of parliament, the West Block appears on the obverse of the Canadian five-dollar bill.

The Queen's Gates (French: Porte de la Reine) is the formal entrance to Parliament Hill, the location of the Canadian parliament buildings, in Ottawa, Ontario. Built in 1872 and set into the fence, known as the Wellington Wall, between piers designed in the Victorian High Gothic style that was fashionable in Canada at the time, the gates sit on the central axis of the hill's landscaping, in line with the Centennial Flame and Peace Tower beyond, and open onto Wellington Street. By the early 1990s, neither the piers nor the ironwork had been properly renovated since their construction; salt from the street, the freeze-thaw cycle, and pollution had damaged and disintegrated the grout and stone faces. Thus, in 1992, Public Works and Government Services Canada began a $5 million restoration project of the entire fence along Wellington, which included the Queen's Gates. The piers were fully repointed and stabilised, including their foundations, and the gates were restored and partly rebuilt by a blacksmith.

The Second Supreme Court of Canada building sat to the west of Parliament Hill in Ottawa and was home to the Supreme Court of Canada from 1882 to 1945. Built in 1874, it was built by Chief Dominion Architect Thomas Seaton Scott for Department of Works as a workshop to maintain buildings on Parliament Hill. Modified by Thomas Fuller from 1882 onwards it was shared by the Supreme Court and National Gallery of Canada for six years until the former became the only tenant.Prior to 1882, the Supreme Court conducted their business in various committee rooms on Parliament Hill, including the Railway Committee Room. The court finally got a permanent home within a decade of its creation.The first building for the Supreme Court was built on Bank Street near Parliament. The design was considered quaint and was less elegant than other government buildings in Ottawa. Although similar in design to the West Block and the East Block, it was a more subdued modern Gothic Revival design. After the Supreme Court moved to its new site to the west of Parliament in 1949, this building was demolished in 1955 after it was condemned as a fire hazard. It is the only building on Parliament Hill to be demolished.The site is currently a parking lot and vehicle screening facility for Parliament Hill.