The California Academy of Sciences is among the largest museums of natural history in the world. The academy began in 1853 as a learned society and still carries out a large amount of original research, with exhibits and education becoming significant endeavors of the museum during the twentieth century.

Completely rebuilt in 2008, the building totals 400,000 square feet and is among the newest natural history museums in the United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

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