1964 – Calouste Gulbenkian Planetarium, Lisbon
Architect: Frederico George
1968 – Armagh Planetarium, Co. Armagh
Architect: G. Phillip Bell
Armagh Planetarium was first proposed in 1943 and the Armagh observatory team worked towards its realisation for over two decades.
1968 – H.R. MacMillan Planetarium, Vancouver, British Columbia
Architect: Gerald Hamilton & Associates
Originally built as the Centennial Museum,
