Did you know? The arboretum has a National State Tree Grove, where all 50 official state trees are represented - each acquired from the state it represents. The oak is the official tree of the U.S. Read more.
Did you know? An Act of Congress created the National Zoo in 1889. It was intended in part to serve as a refuge for native wildlife, such as bison and beaver, that were vanishing from North America. Read more.
Did you know? The gardens were founded in part to house plants acquired by the Wilkes Expedition to the South and Central Pacific. It was on this voyage that Antarctica was confirmed to be a continent Read more.