Below is a picture of the Aegon office tower in
We were told that the dome on top is not open
to the public.
The Biophere 2 near Tucson, Arizona has two large geodesic domes.
photos of Biosphere 2
US Pavillion, Quebec http://www.greatbuildings.com/buildings/US_Pavilion_at_Expo_'67.html
More of my dome photography: