Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Rideau Canal' has mentioned 'Historic site' in the following places:
Occurrence Sentence Text Source
Rideau CanalNative names English: Rideau Canal French: Canal RideauThe Ottawa Locks at Colonel By ValleyAreaOntarioLength202xc2xa0km (126xc2xa0mi)Built1832ArchitectJohn ByGoverning bodyParks Canada UNESCO World Heritage SiteTypeCulturalCriteriai, ivDesignated2007 (31st session)Referencexc2xa0no.1221State PartyCanadaRegionNorth America National Historic Site of CanadaDesignated1925
The Rideau Canal was designated a National Historic Site of Canada in 1925, and marked with a federal plaque the next year, and again in 1962 and 2013.