Cathedral of St. John the Baptist (Washington, D.C.)

The 16th Street Bridge, also known as the Piney Branch Bridge, is an automobile and pedestrian bridge that carries 16th Street NW over Piney Branch and Piney Branch Parkway in Washington, D.C. It was the first parabolic arch bridge in the United States. Construction on the first span began in 1905 as part of the northward extension of 16th Street, and was finished in 1907 but was never opened to traffic. The second span began construction in 1909 and was completed in 1910. The bridge was renovated in 1990, and again beginning in October 2014. The bridge, which spans the Piney Branch addition to Rock Creek Park, sits at the corner of four Washington, D.C., neighborhoods: Sixteenth Street Heights, Crestwood, Columbia Heights, and Mount Pleasant.

The Iglesia ni Cristo chapel in Washington D.C. in the United States is located along 16th Street. It used to be a place of worship and school of the Saints Constantine and Helen Greek Orthodox Church. The Iglesia ni Cristo through the Allison James Estates & Homes purchased the chapel building from Summit Commercial which represents the Greek Orthodox church for $9.2 million in November 2012. It was renovated by the Iglesia as a house of worship for its own adherents.The complex composed with two building. The former Orthodox church building has one story and a basement with a land area measuring 14,800 square feet (1,370 m2) is located within a 1.82 hectares (196,000 sq ft; 18,200 m2) parcel of land. The former school building within the complex is three stories high and measures 16,370 square feet (1,521 m2).

Crestwood is an entirely residential neighborhood located in Northwest Washington, D.C. and bordered on three sides by Rock Creek Park. Heading north from the White House on 16th Street, Crestwood is among the first neighborhoods that features single-family homes with larger lawns. It has many mature trees, and it is not uncommon to see deer and other wildlife from the park crossing the streets there. Crestwood has been known as part of the "Gold Coast", an enclave of neighborhoods in Washington, D.C., known as a haven for affluent African American professionals; Crestwood as the "Gold Coast", is an important part of the African American history of the District of Columbia. At times throughout its history and currently today, Crestwood has experienced demographic changes, including regarding its ethnic and racial compositions, and currently, includes more families of diverse sexual orientations. It is home to families who have lived in the neighborhood for decades, as well as younger families.Just to the north, residents can take advantage of the Carter Barron Amphitheatre and William H.G. FitzGerald Tennis Center. The amphitheatre once hosted concerts and free cultural events during the spring and summer, and the Citi Open tennis tournament is played at the Tennis Center next door. Crestwood is centrally located on 16th Street, being about fifteen minutes by car from both the K Street business district and downtown Silver Spring, Maryland. The closest Metro stations are Georgia Avenue-Petworth and Columbia Heights on the Green Line and Van Ness-UDC on the Red Line. Buses run regularly on 16th Street to Silver Spring to the north and government offices, downtown stores and the National Mall to the south.

The Cambodian ambassador to the United States is the official representative of the government of Cambodia in Phnom Penh to the government of the United States in Washington, D.C.

The Embassy of Cambodia in Washington, D.C. is the diplomatic mission of the Kingdom of Cambodia to the United States of America. It is located at 4530 16th Street Northwest, Washington, D.C. in the Crestwood neighborhood.Chum Sounry is the current Cambodian Ambassador to the United States, and was appointed to the role in 2018.

The Nineteenth Street Baptist Church, located on 16th Street, NW, is considered to be the first and oldest black Baptist congregation in Washington, D.C. Since its founding in 1839, the church has figured prominently within the historical and social fabric of Washington, D.C.'s African American community.

St. Stephen and the Incarnation is an Episcopal parish in the Mount Pleasant neighborhood of Washington, D.C. It was formed by the merger of St. Stephen's parish and the Church of the Incarnation. It is notable as the site of the second ordination of female priests in the Episcopal Church and the first public celebration of the Eucharist in the Episcopal Church by a female celebrant. The church has also played a role in climate change activism. As Bill McKibben noted in his book Oil and Honey, activists used the church as a staging ground for protests related to the Keystone XL Pipeline.

Hilltop Manor, now known as The Cavalier, is an historic structure located in the Columbia Heights neighborhood in the Northwest Quadrant of Washington, D.C. This building is one of several developments between architect Harvey H. Warwick and developer Morris Cafritz, and is one of the first cooperative apartment buildings in the city. The building was opened in 1927 along the 14th Street streetcar line. Its size and density shows the rapid growth Washington experienced along major thoroughfares after World War I. It was listed on the National Register of Historic Places in 2007.

HacDC is a hackerspace in Washington, D.C., and a 501(c)(3) nonprofit. According to one member's description, "HacDC members improve the world by creatively rethinking technology. We break, build, and occasionally abuse technology in the pursuit of greater knowledge about how it works and re-purpose it to build new things." In March 2009, its activities were described by The Washington Post. In April 2011, its activities were also mentioned by FastCompany., and NPR's All Tech Considered.

Guglielmo Marconi is a public artwork by Attilio Piccirilli, located at the intersection of 16th and Lamont Streets, N.W., in the Mount Pleasant neighborhood of Washington, D.C., United States. It stands as a tribute to Italian inventor Guglielmo Marconi. It was paid for by public subscription and erected in 1941. The artwork was listed on both the District of Columbia Inventory of Historic Sites and the National Register of Historic Places in 2007. It is a contributing property in the Mount Pleasant Historic District. The monument was originally surveyed as part of the Smithsonian's Save Outdoor Sculpture! survey in 1994.

Ingleside is a historic house in the Mount Pleasant neighborhood of Washington, D.C. It has been listed on the District of Columbia Inventory of Historic Sites since 1979 and it was listed on the National Register of Historic Places in 1987. The house was designed by architect Thomas U. Walter and completed around 1850. It is a contributing property in the Mount Pleasant Historic District.

The Buildings at 1644–1666 Park Road NW are twelve semi-detached row houses in the Mount Pleasant neighborhood of Washington, D.C. They are typical of speculative row house development in the neighborhood. The houses were designed in the Colonial Revival style by Washington architect Appleton P. Clark Jr., and completed in 1906. They are a few of such houses that he designed and exemplify his facility for eclectic design and sophistication. The houses are three stories in height and the exteriors are covered in brick. They feature slate Mansard roofs and wooden front porches. The styles of the main facades alternate and contain shallow oriel windows, prominent dormers and curved pediments. They were listed in the National Register of Historic Places in 1986.