EntityQ3348364· pop 10· linked from 198 articlesCincinnati ObservatorySign in to saveother organization in Cincinnati, United StatesConnectionsCincinnatiEntityrefracting telescopeEntityNational Register of Historic PlacesEntityCincinnati Music HallEntityOhioEntitygeographic coordinate systemEntityasteroidEntityInternational Standard Book NumberEntityJohn Quincy AdamsEntityPresident of the United StatesConceptobservatoryEntityOCLC, Inc.EntityHamilton CountyEntityNational Park ServiceEntityNational Historic LandmarkEntityQ138483EntityUniversity of CincinnatiEntityKent State shootingsEntityZoarEntityGreenhillsEntityCategories1843 establishments in OhioAstronomical observatories in OhioBuildings and structures in CincinnatiEducation in CincinnatiNational Historic Landmarks in OhioNational Register of Historic Places in CincinnatiPlanetaria in the United StatesResearch institutes established in 1843Samuel Hannaford and Sons Thematic ResourcesTourist attractions in Cincinnati