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- en.wikipedia.org United States National ArboretumThe United States National Arboretum is an arboretum in northeast Washington, D.C., operated by the United States Department of Agriculture's Agricultural Research Service.
- britannica.com place/United-States-National-…United States National Arboretum, arboretum in Washington, D.C., operated by the U.S. Department of Agriculture.
- voanews.com a/national-arboretum-one-of-…United States. ... The U.S. National Arboretum is on a 180-hectare plot of land in the eastern part of Washington, several kilometers from the center of the city.
- mypacer.com parks/101391/united-states-national-…According to the Pacer community, the best place to walk in United States National Arboretum is the 1.3-mile route with a rating of 4.5 and 2 reviews.
- tripadvisor.com Things to Do in Washington DC U.S. National ArboretumExpectations for our National Arboretum should be reevaluated. It is certainly a sad state for a US National Arboretum.
- tclf.org landscapes/us-national-arboretumUnited States. ... The National Arboretum was listed in the National Register of Historic Places in 1978.
- ihitthebutton.com national-arboretum/The United States National Arboretum in Washington, DC, is an oasis of greenery in the middle of the nation’s capital.
- tr.hotels.com go/usa/united-states-national-…In 1973, the United States National Arboretum was officially declared as a Category II landmark on the National Register of Historic Places.
- foursquare.com v/united-states-national-arboretum…See 530 photos and 61 tips from 4893 visitors to United States National Arboretum. "Home to dozens of different types of flowering cherry trees during..."