Massachusetts Heights

Saint Sophia Greek Orthodox Cathedral was founded as a church in 1904 to serve the Greek Orthodox residents of the District of Columbia. In 1962, the church was elevated to a cathedral under the jurisdiction of the Archbishop of America in New York City and serves as his cathedral in Washington. The church is not named for Saint Sophia the martyr, but rather the Holy Wisdom of God in the tradition of Hagia Sophia of Constantinople. The building is in the Neo-Byzantine style with a central dome that reaches 80 ft (24 m) in height. The congregation met in temporary quarters for several years, prior to the construction of its own church near 8th and L Streets NW which was dedicated in 1924. This site is currently occupied by the Walter E. Washington Convention Center. Construction on the current edifice at 2815 36th Street NW, near Massachusetts Avenue and a short distance from the Washington National Cathedral, began in 1951. The congregation began worshipping there in 1955 shortly after major construction was completed. Although the building has been in use for over fifty years, the interior decoration is incomplete. Work began on the interior in 1965 and continues to the present. The cathedral was Consecrated in May 2015 by Archbishop Demetrios of America. In 2003, construction began on an education center to the east of the sanctuary. It opened September 16, 2004, and contains classrooms, a library and ballroom to house gatherings. On May 10, the Cathedral was consecrated in a service presided over by Archbishop Demetrios of America, Primate of the Greek Orthodox Church in America; Bishop Andonios of Phasiane, Chancellor of the Greek Orthodox Archdiocese of America; the Reverend Steven Zorzos, Presiding Priest of Saint Sophia Cathedral; the Reverend Dimitrios Lee, Assistant Priest of Saint Sophia Cathedral; the Reverend John Tavlarides, Presiding Priest Emeritus of Saint Sophia Cathedral; and Archdeacon Panteleimon Papadopoulos. As part of the service, the relics of three saints were interred in the altar table—those of Saint Panteleimon, Saint Barbara and Saint Kyrikos (representing a male saint, a female saint and one of the few child saints).

St. Alban's Parish is an Episcopal Church in Washington, D.C. and is a member of the Episcopal Diocese of Washington. It was founded by Phoebe Pemberton Morris Nourse, who bequeathed $35 to establish the church.

The All Hallows Guild Carousel or simply the Traveling Carousel is a historic carousel housed at the National Cathedral in Washington, D.C. since 1963. Previously, it was a "county fair" carousel operated by Clifford Sandretzky as part of a traveling carnival based in the northern Virginia area. The rare all-wood carousel was likely built in the 1890s by the Merry-Go-Round Company of Cincinnati and has a rare caliola with brass pipes that was built by the Rudolph Wurlitzer Company of North Tonawanda, New York in 1937. The original operator, Clifford Sandretzky, sold the carousel to the All Hallows Guild of the National Cathedral in 1963 who has owned it since. It was used several times per year at fund raising events and then disassembled and placed in storage. More recently, the carousel has been assembled and used only once a year at the Guild's Spring Flower Show.There are 24 animal figures on the carousel plus two chariots. The animals are formed into 12 pairs. The animals include a single lion, zebra, and elephant, pairs of goats, camels, and deer, four standing horses, and nine jumping horses. They are brightly painted and hand-carved in the European tradition.A gasoline engine located near the 16 foot (4.9 m) center pole drives the carousel. A yellow and white canopy covers the structure and is topped by a small flag.The All Hallows Guild Carousel is one of only two carousels listed on the National Carousel Census in the District of Columbia. The other, the Smithsonian Carousel on the National Mall, is a larger, non-traveling carousel with 60 wood and metal composition figures built fifty years after the All Hallows Guild Carousel.

The Embassy of Iraq in Washington, D.C. is the diplomatic mission of the Republic of Iraq to the United States. The embassy is located at 3421 Massachusetts Avenue, Northwest, in the Embassy Row neighborhood, near the United States Naval Observatory.

The Embassy of Nepal in Washington, D.C. is the Federal Democratic Republic of Nepal's diplomatic mission to the United States. It is located at 2730 34th Place NW Washington, D.C., in the Glover Park neighborhood. The Ambassador is Sridhar Khatri.

St. Nicholas Cathedral (Russian: Свято-Николаевский собор) in Washington, D.C., is the primatial cathedral of the Orthodox Church in America and the seat of Tikhon, Archbishop of Washington, Metropolitan of All America and Canada of the Orthodox Church in America.

The Embassy of Cape Verde in Washington, D.C. is the diplomatic mission of the Republic of Cape Verde to the United States. It is located at 3415 Massachusetts Avenue, Northwest, Washington, D.C., in the Embassy Row neighborhood.The Ambassador is Dr Carlos Wahnon Veiga.

George Washington on Horseback is an equestrian statue by sculptor Herbert Haseltine. It is located south of the Washington National Cathedral. It was dedicated on February 22, 1959.

St. Albans School (STA) is an independent college preparatory day and boarding school for boys in grades 4–12, located in Washington, D.C. The school is named after Saint Alban, traditionally regarded as the first British martyr. Within the St. Albans community, the school is commonly referred to as "S-T-A." It enrolls approximately 590 day students in grades 4-12, and 30 additional boarding students in grades 9-12, and is affiliated with the National Cathedral School and the co-ed Beauvoir, the National Cathedral Elementary School, all of which are located on the grounds of the Washington National Cathedral. St. Albans, along with the affiliated schools and the Washington National Cathedral, are members of the Protestant Episcopal Cathedral Foundation. It is regarded among the most prestigious secondary schools in the United States. The school mascot is the bulldog, a symbol adopted under the school’s fourth headmaster, Canon Charles S. Martin, because of Martin’s fondness for his pet bulldogs. The St. Albans motto, "Pro Ecclesia et Pro Patria," translates to "For Church and Country." St. Albans requires all students to attend Chapel twice a week in The Little Sanctuary. The school seeks to develop in its students a sense of moral responsibility through Chapel, its Honor Code, and a co-curricular social service program. A 2004 article in The Wall Street Journal found that among U.S. schools, St. Albans had the 11th-highest success rate in placing graduates at 10 selective universities. A 2015 article in Business Insider named St. Albans the smartest boarding school in the United States on the basis of average SAT scores.Approximately 80% of the faculty at the school have advanced degrees. The school also maintains one writer-in-residence, who teaches English classes while developing his or her work. (A past writer-in-residence is Curtis Sittenfeld, who worked on her best-selling novel Prep while at St. Albans).

The Cape Verdean ambassador in Washington, D. C. is the official representative of the Government in Praia to the Government of the United States.

The Babcock–Macomb House is a historical residence located at 3415 Massachusetts Avenue, NW, Washington, D.C. Construction of the house was ordered by Kate Woodman Babcock, widow of former Representative Joseph W. Babcock of Wisconsin. Babcock had had a successful career in the lumber industry while serving two terms in the Wisconsin State Assembly. Upon taking office in the House of Representatives in 1893, Babcock was appointed to the Committee on the District of Columbia. In 1894 he was appointed as chairman. In this position, Babcock gained local popularity and substantial wealth, due to the committee's role in development of the city. Constance McLaughlin Green wrote that Babcock "cleared $400,000 in Washington real estate ... simply by using [his] advance knowledge of which sections of the city were to get funds..."In 1911, Babcock's widow Kate purchased two lots in the newly laid out Massachusetts Heights subdivision, established when Massachusetts Avenue was extended beyond Florida Avenue. Mrs. Babcock purchased the two lots for $14,529 on October 18. The home was the first constructed in the neighborhood, which the city's planning committee hoped would attract the wealthy elite.The architect was Arthur B. Heaton. Heaton opened his own office in Washington in 1900 at age 25. Between 1899 and 1906 he designed houses for the new Cleveland Park neighborhood. From 1908 to 1920 he served as supervising architect for the Washington National Cathedral. During this period, Heaton and his family lived in Cleveland Park, and he designed many buildings for the neighborhood. His residential designs used numerous styles, including Georgian, Colonial Revival, Spanish mission, and the Neo-Renaissance of the Babcock–Macomb House.Mrs. Babcock never moved into the new home. In 1917 she sold it to Tucker Sands, a vice president of the National Metropolitan Bank. Sands rented the house to tenants for two years, until he sold it in 1919 to Army Colonel Augustus Canfield Macomb. The Macomb family lived in the home until 1982, when Edna Wilson Macomb, widow of Alexander Macomb, sold the property to the Republic of Cape Verde, which has utilized it as their embassy to the United States.

The Beauvoir School is a coeducational primary school on the grounds of the Washington National Cathedral in Washington D.C., serving students from pre-kindergarten through 3rd grade. In 1933, it was founded to prepare boys for St. Albans School and girls for National Cathedral School, which serve grades 4-12. Like the Cathedral itself and the affiliated schools, Beauvoir is overseen by the Protestant Episcopal Cathedral Foundation.