Thomas D'Arcy McGee Building

The High Commission of Barbados in Ottawa (French: Haut-commissariat de la Barbade à Ottawa) is the primary diplomatic mission of Barbados in Canada. Among the initial diplomatic missions to be established by Barbados after the attainment of independence from Britain, the office is located in Downtown Ottawa, Ontario at 55 Metcalfe Street in Suite 470. The High Commission is located three blocks from Parliament Hill, seat of the national legislature of Canada, on the corner Metcalfe and Queen Streets. The High Commission to Ottawa is further supported by a Consul General in the city of Toronto. The official residence of the Barbadian High Commissioner to Ottawa is located on the edge of Rockcliffe Park at #368 Lisgar Road.The Barbadian High Commission presently ranks 14th on Canadian Government's "Ambassadors by Order of Precedence" list.Initially the Office of the Barbados High Commission was established in June 1967 at: 151 Slater Street, Suite 200. It remained for a number of years before relocating.

The Central Post Office is a historic building in Ottawa, Ontario, Canada. The building was completed in 1939, replacing a Second Empire style office built in 1876. This original office was located in what is today Confederation Square, and was demolished in order to construct the grand public space. The new office was designed by W.E. Noffke, it is located on the western edge of the square at the end of Sparks Street. The new site required the demolition of the Royal Bank of Canada building (built originally for James Hope and Company). The office combines the distinctly Canadian Chateauesque style with Art Deco elements. It is noted for the decorative carved lions arranged around its base. The Central Post Office is currently home to offices for the Privy Council of Canada, with a Canada Post post office on the main floor.

Bell Block is a building in Ottawa, Ontario, Canada. It is located on 40 Elgin Street between the Central Chambers and Scottish Ontario Chambers. It was built in 1867 to a design by William Hodgson (1827–1904). Designated as a heritage property under Part IV of the Ontario Heritage Act, it was honoured with an "Award of Excellence" from the City of Ottawa.

The Office of the Prime Minister and Privy Council (French: Bureau du Premier ministre et du Conseil privé) building, formerly known as the Langevin Block (French: Édifice Langevin, IPA: [lɑ̃ʒvɛ̃]), is an office building facing Parliament Hill in Ottawa, Ontario, Canada. As the home of the Privy Council Office and Office of the Prime Minister, it is the working headquarters of the executive branch of the Canadian government. The term Langevin Block was previously used as a metonym for the Prime Minister's Office and the Privy Council Office. The building was named after Father of Confederation and cabinet minister Hector-Louis Langevin. Following objections by Indigenous people of the use of Hector Langevin's name, due to allegations regarding Langevin's role in establishing the residential school system associated with the abuse of Indigenous children and attempts to forcibly assimilate them, Prime Minister Justin Trudeau announced the renaming of the building on June 21, 2017.The building is a National Historic Site of Canada.

The Scottish Ontario Chambers is a building in Ottawa at the corner of Sparks Street and Elgin Street that was built in 1883. It was designed by William Hodgson. It is designated as a heritage property under Part IV of the Ontario Heritage Act.

Central Chambers is a building at the corner of Elgin Street and Queen Street in Ottawa that is a National Historic Site. It is located at 42 to 54 Elgin Street, next to Bell Block. It faces the Canadian War Memorial at Confederation Square. Central Chambers was built between 1890 and 1893 and designed by John James Browne of Montreal, an example of Queen Anne Revival commercial architecture. Formerly serving as an office for the Canadian Atlantic Railway, it now houses the National Capital Commission.The building was purchased by the NCC in the 60's, remained vacant throughout much of the 70s and 80s, and in 1992, plans were made for renovations. In 1994 the NCC gutted the interior and the facade became integrated into a new office tower complex. It was designated as a National Historic Site of Canada in 1990 for being a fine example of the Queen Anne Revival style in commercial architecture.

Inuit Tapiriit Kanatami, (Inuktitut syllabics: ᐃᓄᐃᑦ ᑕᐱᕇᑦ ᑲᓇᑕᒥ, meaning "Inuit are united in Canada") previously known as the Inuit Tapirisat of Canada (Eskimo Brotherhood of Canada), is a nonprofit organization in Canada that represents over 65,000 Inuit across Inuit Nunangat and the rest of Canada. Their mission is to "serve as a national voice protecting and advancing the rights and interests of Inuit in Canada."Founded in 1971 by Inuit leaders, the organization has gone to accomplish various things such as, assisting in the negotiation of land claims, representing the voice of Inuit and their culture by using television, taking legal action against those who have violated their rights, and creating a program to improve education for Inuit children. The ITK has sought to attain its goals, either in cooperation with various levels of government or in opposition. Altogether, the ITK looks to advocate on the behalf of Inuit in Canada. The contributions of the ITK led to the creation of Nunavut.

The Russell House hotel was the most high-profile hotel in Ottawa, Ontario, Canada for many decades. It was located at the corner of Sparks Street and Elgin Street, where Confederation Square is located today. The original building was built in the 1840s. Additions were made in the 1870s and the original building replaced in 1880. It closed in 1925 and was demolished in 1928.

The Embassy of Ireland is Ireland's embassy in Canada. It is located at 130 Albert Street in the 11th Floor, in the city's downtown core of Ottawa, Ontario, Canada. Dr. Eamonn C. McKee has served as Ambassador since October 2020.Ireland has a consulate-general in Vancouver and honorary consulates in Calgary, Edmonton, Montreal and St. John's.

Murphy-Gamble Limited was a long-time department store in the City of Ottawa, Ontario, Canada. The store was located at 118 Sparks Street in a 1909 building designed by C.P. Meredith, and for years used the slogan "Ottawa's Smart Store". Murphy-Gamble's fifth floor restaurant was known as the Rideau Room. Sparks Street was home to many of Ottawa's department stores during the first half of the 20th century, including Murphy-Gamble, C. Ross and Bryson-Graham. Ogilvy's, Freimans and Caplan's were located further east, on Rideau Street. The success of local department stores in Ottawa discouraged the entry of most national chains into the National Capital Region until the 1950s. Murphy-Gamble was purchased by Simpson's in 1971, and the store continued to operate under the Simpson's banner until 1983. The building is now occupied by a branch of Scotiabank. With the closing of the Zellers store in 2013, and the closure of Holt Renfrew at 240 Sparks Street in 2014, there were no department stores left in operation on Sparks Street until Winners moved into the previous Zellers location in 2015.

Confederation Square (French: Place de la Confédération) is an urban square in Ottawa, Ontario, Canada, and is considered the second most important ceremonial centre in Canada's capital city, after Parliament Hill. Roughly triangular in area, with Canada's National War Memorial at its centre and the Valiants Memorial at its periphery, the square is bounded by Wellington Street to the north and branches of Elgin Street to the east and west. The square was designated a National Historic Site of Canada in 1984. Confederation Square's importance is due not only to its central location in Ottawa and its status as a rare Canadian example of a City Beautiful-inspired square, but also arises from the landmark buildings that frame the square: the Château Laurier, the Senate of Canada Building, the National Arts Centre, the Central Chambers, the Scottish Ontario Chambers, the Central Post Office, the PMO and the East Block. Part of the square crosses over the Rideau Canal, itself a National Historic Site of Canada and a World Heritage Site.

The National War Memorial (French: Monument commémoratif de guerre du Canada), titled The Response (French: La Réponse), is a tall, granite memorial arch with accreted bronze sculptures in Ottawa, Ontario, Canada, designed by Vernon March and first dedicated by King George VI in 1939. Originally built to commemorate the Canadians who died in the First World War, it was in 1982 rededicated to also include those killed in the Second World War and Korean War and again in 2014 to add the dead from the Second Boer War and War in Afghanistan, as well as all Canadians killed in all conflicts past and future. It now serves as the pre-eminent war memorial of 76 cenotaphs in Canada. In 2000, the Tomb of the Unknown Soldier was added in front of the memorial and symbolizes the sacrifices made by all Canadians who have died or may yet die for their country.