Final answer:
The city with landmarks including Centre Block on Parliament Hill, the Fairmont Chateau Laurier Hotel, and the Library of Parliament is Ottawa, Ontario, Canada's national capital.
Step-by-step explanation:
The city that includes sites such as Centre Block on Parliament Hill, the Fairmont Chateau Laurier Hotel, and the Library of Parliament is Ottawa, Ontario, which is also the national capital of Canada. Centre Block is the main building of the Canadian parliamentary complex and houses important components like the House of Commons and the Senate chambers. The Fairmont Chateau Laurier is a historic hotel located nearby, and the Library of Parliament is revered for its stunning architecture and collection of legislative materials. These landmarks are not only significant architectural achievements but also hold great importance in the Canadian political landscape.