The U.S. National Arboretum 2014
The U.S. National Arboretum in Washington D.C. is the home of the National Bonsai & Penjing Museum. The Arboretum was established by an Act of Congress in 1927 and it is part of the Agricultural Research Service of the U.S. Department of Agriculture. The National Bonsai Foundation channels its financial support through the Arboretum to benefit the Museum.
The location is at Northeast Washington, DC, with entrances on New York Avenue and R Street. There are research locations in Washington, DC; Beltsville, Maryland; and McMinnville, Tennessee.
With the total size of 446 acres with 9.5 miles of winding roadways. and over 600,000 visitors anually.
(source: USNA )