Office of the Prime Minister and Privy Council

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.

The Thomas D'Arcy McGee Building, at 90 Sparks Street, is an office building in Ottawa, Ontario, Canada. It is located on the south side of Sparks Street, east of Metcalfe. The building was opened in 1981 with the Royal Bank of Canada as its main occupant and accordingly it was named the Royal Bank Centre. As with many Ottawa office buildings it also became home to a number of federal government offices. In March 2001, the building was purchased by the federal government for 66 million dollars. The next year, it was renamed after Father of Confederation Thomas D'Arcy McGee, who was assassinated in 1868 near the site of the building. It is still RBC's Ottawa headquarters and the bank's logo remains on the structure. On October 31, 2007, the Building was sold to Larco Investments Limited on a leaseback arrangement good for 25 years.The bottom two storeys contain a shopping complex. The site was once occupied by a row of stores including hat maker and retailer R.J. Devlin Limited, which later operated as Morgan's.

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.

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.

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.

The Tomb of the Unknown Soldier (French: Tombe du Soldat Inconnu) is a tomb situated before the National War Memorial in Confederation Square, Ottawa, Ontario. The tomb is dedicated to Canadian service members, and holds the remains of an unidentified Canadian soldier who died in France during the First World War; selected from a Commonwealth War Grave near Vimy, in the vicinity where the Battle of Vimy Ridge took place. A tomb with an unidentified soldier was added to the National War Memorial in 2000, the culmination of a project begun by the Royal Canadian Legion. Since 2007, the Canadian Armed Forces have posted sentries at the tomb, and the National War Memorial, from April to November.

The Indigenous Peoples Space is a building in Ottawa, Ontario, Canada, designated for the use of the First Nations, Inuit, and Métis peoples. The building is located at 100 Wellington Street in Block 2 of Canada's Parliamentary precinct, immediately south of Parliament Hill in downtown Ottawa. The current Beaux-Arts building on site was built in 1931 to house the first permanent United States Embassy in Canada, but was abandoned for a new location in 1999. After remaining vacant for almost 20 years, in 2017, the building was designated to be revitalized as the Indigenous People's Space. The adaptive reuse of the original building is currently being undertaken by three Indigenous architectural firms (David T. Fortin Architect, Smoke Architecture, and Wanda Dalla Costa Architects) to incorporate Indigenous values and teachings into an outer shell-design that is reflective of its people. Included with the 100 Wellington Street building is 119 Sparks Street, originally housing the Canadian Imperial Bank of Commerce, and connecting space.

Confederation Boulevard (French: Boulevard de la Confédération) is a "ceremonial and discovery route" in Canada's National Capital Region, running through Parliament Hill and encompassing downtown areas in Ottawa and Gatineau. Some of Canada's most important institutions and landmarks lie along its route. During state visits, Confederation Boulevard is toured by foreign dignitaries. On Canada Day, much of Confederation Boulevard is closed to cars. Confederation Boulevard is an initiative of the National Capital Commission (NCC).The route's name commemorates Canadian Confederation.

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.

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.

The Centennial Flame (French: Flamme du centenaire) is a monument on Parliament Hill commemorating the 100th anniversary of the Canadian Confederation. First lit in January 1967, the Flame worked with natural gas and as of 2021 uses biogas, presenting a fountain that does not freeze in winter. Money thrown into it is a donation for people with disabilities, some of whom have received over $5,000.