Embassy of the Republic of Congo, Washington, D.C.

The Congolese ambassador in Washington, D. C. is the official representative of the Government in Brazzaville to the Government of the United States.

The Toutorsky Mansion, also called the Brown-Toutorsky House, is a five-story, 18-room house located at 1720 16th Street, NW in the Dupont Circle neighborhood of Washington, D.C. Since 2012, it has housed the Embassy of the Republic of the Congo. The 12,000-square-foot (1,100 m2) mansion was completed in 1894 for U.S. Supreme Court Justice Henry Billings Brown. Brown spent $65,000 ($2,035,750 today) to build the house, including $25,000 to buy the land from the Riggs family in 1891.The house was designed by architect William Henry Miller, the first graduate of Cornell University’s School of Architecture, who modeled the exterior on 16th-century Flemish buildings, and the interior using a mixture of Gothic, Elizabethan, Jacobean, and Colonial elements. The house contains eight fireplaces and a main staircase featuring hand-carved griffins. "With its stepped and scroll-edged gables, insistent rows of windows, dark red brick, and strong horizontal stone courses, it is a rare iteration of Renaissance Flemish architecture in a city whose architectural ancestry is overwhelmingly English and French,” according to the AIA Guide to the Architecture of Washington, D.C.The house is a contributing property to the Sixteenth Street Historic District and may not be demolished or significantly altered without permission from the city’s Historic Preservation Review Board.

Universalist National Memorial Church (UNMC) is a Unitarian Universalist church located at 1810 16th Street, Northwest in the Dupont Circle vicinage of Washington, D.C. Theologically, the church describes itself as "both liberal Christian and Universalist". Originally a member of the Universalist Church of America, it became a member of the Unitarian Universalist Association in 1961 when the former merged with the American Unitarian Association to form the UUA, and in 2003, UNMC strengthened its ties to the UUA.

The House of the Temple is a Masonic temple in Washington, D.C., United States that serves as the headquarters of the Scottish Rite of Freemasonry, Southern Jurisdiction, U.S.A. (officially, Home of The Supreme Council, 33°, Ancient & Accepted Scottish Rite of Freemasonry, Southern Jurisdiction, Washington D.C., U.S.A.) Designed by John Russell Pope, it stands at 1733 16th Street, N.W., in the Dupont Circle neighborhood, about one mile directly north of the White House. The full name of the Supreme Council is "The Supreme Council (Mother Council of the World) of the Inspectors General Knights Commander of the House of the Temple of Solomon of the Thirty-third degree of the Ancient and Accepted Scottish Rite of Freemasonry of the Southern Jurisdiction of the United States of America." It was modeled after the tomb of Mausolus at Halicarnassus. It contains multiple museum rooms devoted to various subject matters which change on a rotating basis. The Temple also holds a permanent large collection of materials related to Scottish poet and Freemason Robert Burns, one of the world’s largest, in its library holdings, which Library was the first public library in Washington, D.C.

The Charlotte Forten Grimké House is a historic house at 1608 R Street NW in the Dupont Circle neighborhood of Northwest Washington, D.C., United States. From 1881 to 1886, the house was home to Charlotte Forten Grimké (1837–1914), an African-American abolitionist and educator, one of the first Northerners to enter Union-controlled areas of the South during the American Civil War in order to teach freedmen and their children. The house was designated a National Historic Landmark in 1976.

Olympics Grounds was a baseball grounds located in Washington, D.C. It was home to the Washington Olympics of the National Association in 1871–1872 and home to the short-lived Washington clubs of 1873 and 1875, including the Washington Blue Legs. It is considered a major league ballpark by those who count the NA as a major league. The ballfield was located at 16th Street NW (east); 17th Street NW (west); and S Street NW (south); about a mile west-southwest of the eventual site of Griffith Stadium. The neighborhood is now a combination of residences and commercial businesses.

The Cairo apartment building, located at 1615 Q Street NW in Washington, D.C., is a landmark in the Dupont Circle neighborhood and the District of Columbia's tallest residential building. Designed by architect Thomas Franklin Schneider and completed in 1894 as the city's first "residential skyscraper", the 164-foot (50 m)-tall brick building spurred local regulations and federal legislation limiting building height in the city that continue to shape Washington's skyline.Today, the Cairo is a condominium building, home to renters and owners of apartments ranging in size from small studios to multi-level two- and three-bedroom units.

Bet Mishpachah (Hebrew: בית משפחה) is a Jewish egalitarian worshiping community in the Dupont Circle area of Washington, D.C. It is one of a number of national and international Jewish communities of "LGBT affirming congregations" that specifically welcome and "embrace" the LGBT (Lesbian, Gay, Bisexual, and Transgender) community, along with all others who "wish to participate in an inclusive, egalitarian, and mutually supportive community." Membership is open to all singles, couples, and families, regardless of religious affiliation, sexual orientation, or gender identity.Sabbath worship services and most religious and educational programs are held at the Washington, D.C. Jewish Community Center (DCJCC).

The DC Minyan is a lay-led Jewish congregation in the Dupont Circle area of Washington, D.C., with programs including Shabbat/Sabbath and Holy Day worship services, education, social events (for singles, couples, and families), retreats, and opportunities for tikkun olam, improving and transforming the world. The majority of its worship services, educational programs, and special events take place at the Washington, D.C. Jewish Community Center (DCJCC).The group was created with a dual commitment to halacha/Jewish law and egalitarianism. The leaders and members of the community seek to create "a warm and intellectually engaging community for prayer and study." Additionally, Beth Tritter, one of the group's four co-founders, states that the minyan has been able to create worship services that exhibit "ruach [spirit] and kavanah [spiritual focus]." The DC Minyan is part of a growing number of similar lay-led programs within the national and international Jewish community, such as New York's Kehilat Hadar and Jerusalem's Shira Hadasha and Kehilat Kedem, that are sometimes described as being part of "the independent minyan movement."The name, minyan, comes from the Hebrew word (מנין) for the prayer quorum traditionally required for a full Jewish prayer service.

The Edlavitch Jewish Community Center of Washington, D.C. (formerly the Washington DCJCC) is a Jewish Community Center located in the historic district of Dupont Circle. It serves the Washington, D.C. area through religious, cultural, educational, social, and sport center programs open to the public, although many programs are strongly linked to Jewish culture, both in the United States and in Israel. It is part of the JCC Association (JCCA), the umbrella organization for the Jewish Community Center movement, which includes more than 350 JCCs, YM-YWHAs, and camp sites in the U.S. and Canada, in addition to 180 local JCCs in the Former Soviet Union, 70 in Latin America, 50 in Europe, and close to 500 smaller centers in Israel. Among the many notable programs sponsored by the EDCJCC are Theater J, a theater group that has hosted world premieres of plays by noted Jewish playwrights such as Wendy Wasserstein, Richard Greenberg, and Ariel Dorfman; the Washington Jewish Music Festival; the Jewish Literary Festival; and the Washington Jewish Film Festival, that includes screenings both at the Center itself, and at other Washington, DC, institutions, including a number of foreign embassies representing nations that produced the films. The EDCJCC also houses the Hyman S. and Freda Bernstein Library, which includes a Jewish Heritage Video Collection, a children's reading collection, and a collection of genealogy books and materials. It is a constituent organization of the Jewish Community Relations Council of Greater Washington, serving Washington, D.C., Maryland, and Virginia.

Theater J is a professional theater company located in Washington, DC, founded to present works that "celebrate the distinctive urban voice and social vision that are part of the Jewish cultural legacy" as a self-mission.

The Institute of World Politics (IWP) is a graduate school of national security, intelligence, and international affairs in Washington, DC and Reston, Virginia. Founded in 1990, it offers courses related to intelligence, national security, and diplomatic communities.