The National Arboretum

The United States National Arboretum is an arboretum in Washington, D.C., 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.

The National Capitol Columns is a monument in Washington, D.C.'s National Arboretum. It is an arrangement of twenty-two Corinthian columns which were a part of the United States Capitol from 1828 to 1958, placed amid 20 acres (8.1 ha) of open meadow, known as the Ellipse Meadow.

Arboretum is a predominantly residential neighborhood located in Northeast Washington, D.C., tucked into the corner of the National Arboretum. The tiny neighborhood is bounded by New York Avenue NE to the north, Bladensburg Road NE to the west, and the National Arboretum to the south and east. The neighborhood includes the apartment community and three blocks of detached homes.

Goshin (Japanese: 護神, "protector of the spirit") is a bonsai created by John Y. Naka. It is a forest planting of eleven Foemina junipers (Juniperus chinensis 'Foemina'), the earliest of which Naka began training into bonsai in 1948. Naka donated it to the National Bonsai Foundation in 1984, to be displayed at the United States National Arboretum; it has been there ever since.

Gateway is the name of a small industrial and residential neighborhood in Northeast Washington, D.C. It is bounded by New York Avenue NE to the south and southeast, Bladensburg Road to the west, and South Dakota Avenue to the northeast. Gateway is across New York Avenue from the U.S. National Arboretum.

The National Grove of State Trees is an attraction at the United States National Arboretum. The groves are planted on 30 acres (120,000 m²) of rolling terrain celebrate the diversity and importance of trees to all 50 states and the District of Columbia. Each state is represented by a loosely arranged grove of several trees that are spaced widely enough to accommodate their mature dimensions.

The United Brick Corporation Brick Complex, also known as the New York Avenue Brick Kilns, is an historic industrial site. It is located at 2801 New York Avenue, Northeast, Washington, D.C. within the United States National Arboretum.The kilns are the only remaining brickyards in Washington, D.C..The twelve remaining kilns were expanded in 1927, and are constructed of common brick, lined with fire brick, with vaulted roofs.