United States National Arboretum

The National Capitol Columns are 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.

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. The individual trees represent Naka's grandchildren.

The United Brick Corporation Brick Complex, also known as the New York Avenue Brickworks, is a historic industrial site. It is located on the 2800 block of New York Avenue, NE in Washington, D.C. on the grounds of the United States National Arboretum. The site sits on federal land, and access by the public is restricted. The kilns represent the only remaining brickyard in Washington, D.C., and one of the few extant examples of the rounded "beehive" kiln style. The structures are constructed of red common brick, lined with heat-resistant firebrick and capped with arched, brick roofs. The complex also contained eight exhaust stacks. There is a small gauge rail system, with a standard rail siding. A factory building and drying shed, which contains 38 drying tunnels, are also still visible on the site.

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. The neighborhood includes the Arboretum Community Center with several gardens and play areas. The Arboretum Neighborhood Association is the neighborhood's community organization.

Langston Golf Course is an 18-hole golf course in Washington, D.C., established in 1939. It was named for John Mercer Langston, an African American who was the first dean of the Howard University School of Law, the first president of Virginia Normal and Collegiate Institute (now Virginia State University), and the first African American elected to the United States Congressas a Republican from Virginia. It was the second racially desegregated golf course in the District of Columbia, and in 1991 its first nine holes were added to the National Register of Historic Places.The course's official address is 2600 Benning Road NE. The course's front nine are located just south of the National Arboretum. Part of the course's back nine holes are located on Kingman Island, which is bordered by the Anacostia River in the east and Kingman Lake in the west.Langston Golf Course should not be confused with the Anacostia Golf Course, an 18-hole golf course also located in Anacostia Park. Anacostia Golf Course was on the eastern shore of the Anacostia River. It opened in May 1933 and closed in June 1958.

A National China Garden has been planned for the United States National Arboretum in Washington, D.C. since 2003. In 2018 the proposed construction of the Chinese garden was reported to have been cancelled due to counterintelligence concerns by American intelligence officials. The garden was intended as a replica of the Ge Garden in Yangzhou. The site for the garden was over 12 acres of the United States National Arboretum in Washington, D.C. The Chinese government planned to fund the entire $100 million cost of the project. Construction was planned for the summer of 2017 and was due to take 30 months. The garden was to have been built by craftspeople from China with landscaping by Rhodeside & Harwell. A formal agreement for the creation of the garden was signed in 2003 between Joseph Jen, the Under Secretary, Research, Education, and Economics at the US Department of Agriculture and the head of the Chinese Academy of Forestry, Jiang Zehui. It was agreed that the United States government would pay for the infrastructure of the site and the Chinese government for the development of the site. The construction of the garden was approved by the United States Congress in 2008 but federal funding from the American government was seen as unlikely. Funds were then raised by the National China Garden Foundation, a nonprofit organization. In 2011 the General Secretary of the Chinese Communist Party, Hu Jintao, was presented with a model of the proposed garden by the Vice President of the United States, Joe Biden, and the United States Secretary of State, Hillary Clinton, during his state visit to the United States. A groundbreaking ceremony was held in 2016 after an agreement on the garden between President Barack Obama and General Secretary Xi Jinping. In 2017 The Washington Post estimated the cost of the materials for the garden as $90 million with work on the site estimated at $30 million. The National China Garden Foundation planned to raise $30 million to fund the operating and upkeep costs of the garden. The Washington Post wrote that the "idea of a gold-plated Chinese garden with all the stylistic bells and whistles seems hard to reconcile with the [United States National Arboretum's] relentless funding issues". The arboretum had a yearly budget of $12 million and had closed for three days a week between 2013 and 2015 in an attempt to save costs. The garden planned to include a 70 ft high replica of the White Pagoda in Yangzhou. The pagoda was planned to be constructed on one of the highest points in the arboretum. The construction of the pagoda was planned with all materials entering the United States in diplomatic bags which United States Customs Service officials would have been unable to examine. In 2018 the construction of garden was reported by The Wall Street Journal to have been cancelled due to counterintelligence concerns. A representative from the Chinese Embassy in the United States disputed this saying that preparations for construction work were ongoing. In July 2022 CNN reported that "when US counterintelligence officials began digging into the details [of the garden], they found numerous red flags" with officials from the Federal Bureau of Investigation (FBI) believing the elevated site of the proposed pagoda would have been ideal for signals intelligence collection.

Phelps Architecture, Construction and Engineering High School or Phelps A.C.E. High School is a public high school in the northeast quadrant of the District of Columbia, United States. The school is often considered a prime example of the school investment program currently occurring in DC. Having fallen victim to time and neglect, the school was rebuilt by an award-winning architect from several smaller buildings into its current form. Along with architecture, construction, and engineering, other courses are also taught there, including vehicle maintenance/repair and operation of large vehicles such as cranes and diggers on state-of-the-art simulators. The school also has a small greenhouse where the students can tend plants. The school powers its buildings by various renewable energy sources (indicated by the color-coded pipes inside, each color denoting a different system). As part of their coursework, the school entrusts students to monitor and maintain components of this system.

Echostage is a music venue located in the Langdon neighborhood of Washington, D.C. Opened in 2012, the hybrid nightclub and concert hall has over 30,000 square feet of space and is capable of hosting up to 3,000 guests. At its inception it was the largest nightlife concert venue in Washington DC, but was eclipsed by the 6,000 person capacity at Anthem DC in 2017. The club is a venue for EDM and other dance music with performances by bands and DJs, including Lorde, Tiësto, Avicii, Calvin Harris, Disclosure, Hardwell, David Guetta, and others. Events at the venue are managed by Club Glow, which in 2015 also opened a smaller EDM venue called Soundcheck located Downtown.In 2020, Echostage was acquired, along with Club Glow and sister club Soundcheck, by Insomniac, an electronic music event promotion company. In 2021, Echostage was voted the number one club in the world by DJ Magazine's annual "Top 100 Clubs" reader's poll, after the club had already held a place in the top ten in this ranking in previous years.

Hickey Run is a tributary stream of the Anacostia River in Washington, D.C.

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 neighborhood takes its name from the period when the Washington Branch of the Baltimore and Ohio Railroad ran in place of present-day New York Avenue. The eastern edge of the District of Columbia was occupied by the military jurisdiction of Fort Lincoln, but Gateway (immediately southwest of Fort Lincoln) was the first civilian area of the District through which trains passed. Gateway is the site of the printing press facility for The Washington Times newspaper.

Watts Branch is a tributary stream of the Anacostia River in Prince George's County, Maryland, and Washington, D.C.

Joel Elias Spingarn High School was a public high school located in the District of Columbia, USA. The school is named after Joel Elias Spingarn (1875–1939) an American educator and literary critic who established the Spingarn Medal in 1913, awarded annually for outstanding achievement by an African American.