www.pc.gc.ca/lhn-nhs/ns/halifax/index_e.aspwww.destination-ns.com/common/property.asp?DirectoryID=...By any criteria or definition the Halifax Citadel is a very 'special place'. The Halifax Citadel has been commemorated as a nationally significant symbol of Halifax's role as a principal naval station in the British Empire and of the city's importance to Canada's development and evolution from colony to nation. The Halifax Citadel was formally recognized as a significant symbol of Canadian nationhood when it was designated as a National Historic Site in 1951.