California Academy of Sciences
The 90-foot (27 m) diameter spherical glass dome enclosing the rainforest exhibit.
The California Academy of Sciences is a natural history museum in San Francisco's Golden Gate Park. It is among the largest museums of natural history in the world, housing over 26 million specimens. The Academy began in 1853 as a learned society and still carries out a large amount of original research. Completely rebuilt in 2008, the building covers 400,000 square feet. The main venues include the Kimball Natural History Museum, Morrison Planetarium, Rainforests of the World and Steinhart Aquarium.