🌐EnglishEnglishDeutschEspañolFrançaisNederlandsРусский中文日本語EntityQ266818· pop 10· linked from 42 articlesDominion Observatoryobservatory in Ottawa, CanadaConnectionsOttawaEntityOntarioEntityCategories1905 establishments in OntarioAstronomical observatories in CanadaBuildings and structures completed in 1905Federal government buildings in OttawaGeological Survey of CanadaNational Historic Sites in OntarioRomanesque Revival architecture in Canada