Cartier Square Drill Hall

The Cameron Highlanders of Ottawa (Duke of Edinburgh's Own) is a Canadian Army Primary Reserve infantry regiment.

The Governor General's Foot Guards (GGFG) is the senior reserve infantry regiment in the Canadian Army. Located in Ottawa at the Cartier Square Drill Hall, the regiment is a Primary Reserve infantry unit, and the members are part-time soldiers. The GGFG are infantry reserve soldiers who train part-time and full-time for domestic operations and international missions. This involves training for domestic operations where the unit deployed members to help during a natural disaster or public emergency such as it did during the 1998 Ice Storm, flooding in 2017 and 2019, and during the COVID-19 pandemic in 2020. It also involves training for international operations and support to the Regular Force on operations in countries such as Afghanistan, Sudan, Iraq, Jordan, Egypt, Latvia, and Ukraine where troops from the regiment have deployed in recent years. Members of the GGFG train part time between September and June, usually Tuesday evenings and one weekend a month. Between May and August, members can be employed full time in a variety of roles such as students or instructors on training courses, taking part in tasks such as the Ceremonial Guard, and attending field exercises. The regiment also runs supplementary training programs such as the marksmanship program to improve shooting skills, and the leadership development training program to prepare soldiers to attend leadership courses. Additionally the regiment runs sports and fitness programs. The GGFG are also affiliated with 1st Battalion, The Royal Canadian Regiment (1 RCR) for reserve integration training. The GGFG perpetuate the 2nd Canadian Battalion (Eastern Ontario Regiment), CEF, and 77th Battalion (Ottawa), CEF, from the First World War.

Lisgar Collegiate Institute is an Ottawa-Carleton District School Board secondary school in Ottawa, Ontario, Canada. The school is located in downtown Ottawa by the Rideau Canal.

The Laurier Avenue Bridge is a bridge in Ottawa, Ontario, Canada. It carries Laurier Avenue over the Rideau Canal and also Colonel By Drive and Queen Elizabeth Driveway. The green steel arches makes the bridge one of the most recognizable in Ottawa. Many of the events of Winterlude are held around the bridge, and it is a common background to pictures of skaters on the canal. The southern entrance to the Department of National Defence Headquarters is located on the eastern portion of the bridge. The first bridge in the location was constructed in 1872. The current four lane bridge was originally built in 1900 and it was extended to the west in 1945. It was originally operated by the National Capital Commission, but in 1996 it and the Mackenzie King Bridge were handed over to the city as the NCC did not have enough money for needed maintenance. In 2001, the bridge was expanded and repaired. The top surface was expanded by 50% allowing wider lanes, dedicated bike paths, and much wider sidewalks. The area around the bridge was also beautified with landscaping and new stairs connecting to the bridge.

The current Ottawa City Hall (French: Hôtel de ville d'Ottawa) is the city hall of Ottawa, Ontario, Canada. The downtown complex consists of two connected buildings: a modern wing located on Laurier Avenue and a 19th-century heritage wing located on Elgin Street. Although City Hall has frontage on two major streets, the main entrance is on Laurier Avenue, and the municipal address is 110 Laurier Avenue West.

The National Capital Region (French: Région de la capitale nationale), also referred to as Canada's Capital Region and Ottawa–Gatineau (formerly Ottawa–Hull), is an official federal designation for the Canadian capital of Ottawa, Ontario, the neighbouring city of Gatineau, Quebec, and surrounding suburban and exurban communities. The term National Capital Region is often used to describe the Ottawa–Gatineau metropolitan area, although the official boundaries of the NCR do not correspond to the statistical metropolitan area. Unlike capital districts in some other federal countries, such as the District of Columbia in the United States, the National Capital Territory of Delhi in India or the Australian Capital Territory in Australia, the National Capital Region is not a separate political or administrative entity. Its component parts are within the provinces of Ontario and Quebec. Defined by the National Capital Act (1985), the National Capital Region consists of an area of 4,715 km2 (1,820 sq mi) that straddles the Ottawa River, which serves as the boundary between the provinces of Ontario and Quebec. This area is smaller than that of the Ottawa–Gatineau census metropolitan area (CMA), which is 6,287 km2 (2,427 sq mi) in size. Ottawa–Gatineau is the only CMA in the nation to fall within two provinces.

Winterlude is an annual winter festival held in Ottawa, Ontario and Gatineau, Quebec (collectively known as the National Capital Region). Winterlude is run by the Department of Canadian Heritage and was started in 1979. The event is one of Ottawa's most important tourist draws, attracting hundreds of thousands of visitors each year. In 2007, it set a new attendance record of an estimated 1.6 million visits to one of the four Winterlude sites. BizBash has recognized Winterlude as one of the top 100 annual attractions in Canada and the United States

National Defence Headquarters (NDHQ) (French: Quartiers généraux de la Défense nationale (QGDN)) was created through the integration of Canadian Armed Forces Headquarters (CAF HQ) with the civilian Department of National Defence (DND) staff in October of 1972. NDHQ is not a specific location, but is instead housed throughout a collection of offices in buildings across the National Capital Region, although it is most commonly identified with the Major-General George R Pearkes Building on Colonel By Drive in Ottawa. From 2017, various locations have been consolidating at National Defence Headquarters, Carling Campus on Carling Avenue.

The Department of National Defence (DND; French: Ministère de la Défense nationale) is the department of the Government of Canada which supports the Canadian Armed Forces in its role of defending Canadian national interests domestically and internationally. The department is a civilian organization, part of the public service, and supports the armed forces; however, as a civilian organization is separate and not part of the military itself. National Defence is the largest department of the Government of Canada in terms of budget, and it is the department with the largest number of buildings (6,806 in 2015).The department is responsible to Parliament through the minister of national defence – Anita Anand as of 2022. The deputy minister of National Defence, the senior most civil servant within the department, is responsible for the day-to-day leadership and operations of the department and reports directly to the minister. The department exists to aid the minister in carrying out their responsibilities within the Defence Portfolio and provides a civilian support system for the Canadian Armed Forces. Under the National Defence Act, the Canadian Armed Forces is a completely separate and distinct organization from, and is not part of, the Department of National Defence.

The Major-General George R. Pearkes Building (often abbreviated as just Pearkes and referred to as '101 Col By') is the principal location of Canada's National Defence Headquarters (NDHQ) and is located in downtown Ottawa, Ontario. NDHQ actually comprises a collection of offices spread across the National Capital Region, however it is most commonly identified with the Major-General George R. Pearkes Building at 101 Colonel By Drive in Ottawa. The building is currently occupied (as of 2022) by senior defence and military staff, procurement and policy officials, intelligence specialists, legal affairs and staff involved in infrastructure.

The Canadian Forces Language School (CFLS) is an institution of the Canadian Forces responsible for providing language education. The CFLS has its headquarters in Gatineau, Quebec, along with its National Capital Region Training Company, and detachments at Saint-Jean-sur-Richelieu, Quebec, and Borden, Ontario. Since 1993, CFLS Detachment Borden, located at Bldg P 153, has been teaching English as a Foreign Language to military officers from Central and Eastern European countries and Far East Countries. Currently, 17 European and 2 Far Eastern countries are represented at the school. The course is sponsored by the Military Training Assistance Program, one of Canada's initiatives through the Partnership for Peace Programme. CFLS offers two 17-week and four 10-week courses annually. The objective is to provide foreign officers with a working ability in English, while acquainting them with the Canadian Forces and Canadian society. The officers, ranging from Second Lieutenants to Generals, have served or may serve on with NATO, the UN, or as military attachés.

The Heritage Building is today part of Ottawa City Hall. It was originally built in 1874 as Ottawa Normal School and served as a teacher's college. The Gothic Revival building stands at Elgin Street and Lisgar and several extensions were added to the rear of the building. It was part of Ontario's normal school system of teacher's colleges that had been set up by Egerton Ryerson. When Ryerson's system was replaced by a more modern system it was renamed the Ottawa Teacher's College in 1953. In the 1960s it was decided that Ontario's teacher's colleges should be merged into universities and the teacher's college was merged into the Faculty of Education of the University of Ottawa in 1974. Four years later the building was closed and the building was sold to the federal government. In 1986 it was purchased by the Regional Municipality of Ottawa-Carleton, to serve as part of a new RMOC headquarters. To the north of the college the main building of the new RMOC building was erected and links were created to the old school, which was re named the Heritage Building. With the creation of the new city of Ottawa in 2000 the building became part of Ottawa City Hall. The mayor has his office in this building, overlooking Elgin Street.