Match: Q18391650 + way/239789847

Wikidata: SAAO Library (Q18391650)
OSM: South African Astronomical Observatory (house name: Main Building) (way 239789847)
matcher place: City of Cape Town (relation 79604)
Wikidata and OSM exact location match
English Wikipedia categories: 19th-century architecture in South Africa, Buildings and structures completed in 1829, Libraries in Cape Town
Tags from Wikidata and Wikipedia: amenity=library, government=culture, office=association, operator:type=ngo

Wikidata location: -33.9344, 18.4775 view on OSM

OSM tag name=South African Astronomical Observatory matches SAAO Library in these Wikidata fields:

amenity=library