The National Capitol Columns at The US National Arboretum

The United States National Arboretum is an arboretum in Washington, DC., operated by the United States Department of Agriculture's Agricultural Research Service as a division of the Henry A. Wallace Beltsville Agricultural Research Center. It was established in 1927 by an act of Congress after a campaign by USDA Chief Botanist Frederick Vernon Coville. It is 446 acres in size, 9 miles of roadways wind through and connect the numerous gardens and collections on the campus. The National Capitol Columns originally supported the old East Portico of the United States Capitol (1828). The columns were removed during expansion of the Capitol in 1958.