George Washington University Virginia Science and Technology Campus

University Center is a census-designated place (CDP) in Loudoun County, Virginia, United States. The population as of the 2010 United States Census was 3,586. Mailing addresses in the community are for Ashburn.

Edelman Financial Field was a planned 4,000-seat multisport stadium in Ashburn, Virginia, within the Washington D.C. metropolitan area, that would have hosted the Loudoun Hounds of the Atlantic League of Professional Baseball and Virginia Cavalry FC of the North American Soccer League.

Cordoba University is an Islamic university located in Ashburn, Virginia, United States. The university is made up of the Graduate School of Islamic and Social Sciences (GSISS) and Cordoba School of Professional Studies. GSISS is part of a United States Department of Defense program for training Muslim military chaplains which produced the United States Marine Corps' first Muslim chaplain. GSISS is an affiliate member of the Washington Theological Consortium.

Broad Run is a tributary of the Potomac River in Loudoun County, Virginia. The creek, located between Goose Creek and Sugarland Run, principally drains portions of eastern Loudoun County, as well as a small portion of western Fairfax County.The headwaters of the creek are located about 3 miles (4.8 km) northeast of Aldie. The creek flows eastward near Arcola and continues generally northeast to its mouth at the Potomac near the southern end of Seldon's Island to the north of Sterling and about 10 miles (16 km) southeast of Leesburg. The watershed of the creek is 67.5 mi2 (175 km2) in Loudoun and 23.8 mi2 (62 km2) in Fairfax.The majority of the run forms the border between the unincorporated areas of Ashburn and Sterling. The Broad Run Magisterial District of Loudoun and Broad Run High School derive their names from the waterway. The Broad Run Bridge and Tollhouse is a national listed historic site. The creek should not be confused with the nearby Broad Run (a tributary of the Occoquan River) that flows through Fauquier and Prince William Counties.

One Loudoun is a census-designated place (CDP) in Loudoun County, Virginia, United States. It is a mixed-use development just south of Virginia State Route 7, 29 miles (47 km) northwest of Washington, D.C., and 7 miles (11 km) southeast of Leesburg. One Loudoun was developed since the 2010 census, so it was not recognized as a census-designated place until the 2020 census. The community has an Ashburn mailing address. As of the 2020 census, the population was 2,285.

The Broad Run Bridge and Tollhouse were built for the Leesburg Turnpike Company in Loudoun County, Virginia. The stone bridge, built about 1820, was a permanent replacement for a series of wood bridges at the location, with at least three that had been washed away between 1771 and 1803. The bridge spanned Broad Run on two arches with prominent conical buttresses. The road rose to the center of the bridge. The stone toll house stands nearby. It is a one-story three-bay house that has been progressively enlarged. The Tollhouse was purchased by the county Board of Supervisors with intentions to restore the facility.One span of the bridge collapsed, on June 21, 1972, as a result of flooding from Hurricane Agnes. The remainder of the bridge has since collapsed, leaving only the stone abutments.The bridge and tollhouse were placed on the National Register of Historic Places on April 17, 1970.

Kincora is a census-designated place in Loudoun County, Virginia, United States. The CDP was first drawn prior to the 2020 census.

Selden Island is a 408-acre island in the Potomac River, located about 32 km (20 mi) WNW of Washington, DC. It is about 4 km long and 0.4–0.5 km wide (2.5 x 1/4–1/3 miles). Although it is located within Montgomery County, Maryland, the only road access is via a bridge connecting it to the Loudoun County, Virginia side of the river. Archaeological evidence indicates the island has been a site of human activity since the Early Woodland period, around 1000 BCE. A characteristic type of pottery known as Selden Island ware dates from this period. It is also the site of a significant Late Woodland period settlement known as the Walker Prehistoric Village, which was added to the National Register of Historic Places in 1975.In 2002, following the diagnosis of two Loudoun County teenagers with malaria, mosquitoes from the island were found to carry the Plasmodium vivax malarial parasite.In 2004, Selden Island was purchased by the Howard Hughes Medical Institute as an addition to the Janelia Farm Research Campus. It was formerly leased as a sod farm.

Janelia Research Campus is a scientific research campus of the Howard Hughes Medical Institute that opened in October 2006. The campus is located in Loudoun County, Virginia, near the town of Ashburn. It is known for its scientific research and modern architecture. The current Executive Director of the laboratory is Ronald Vale, who is also a vice-president of HHMI. He succeeded Gerald M. Rubin in 2020. The campus was known as "Janelia Farm Research Campus" until 2014.

Janelia or Janelia Farm is a mansion and former farm near Ashburn, Virginia, built in 1936 for artist Vinton Liddell Pickens and her husband Robert Pickens, a journalist. The farm property has become the Janelia Research Campus of the Howard Hughes Medical Institute, which surrounds the house.

Countryside is a census-designated place in Loudoun County, Virginia, United States. The population as of the 2010 census was 10,072. It is located about 27 miles (43 km) northwest of Washington and is bounded by the Potomac River to the north, and by Route 7 (Leesburg Pike) to the south. Located in eastern Loudoun County, it is about 9 miles (14 km) north of Washington Dulles International Airport. It is bordered by the community of Cascades to the east and by Dulles Town Center to the south, across Route 7.

Dulles Town Center is a two-level enclosed shopping mall in Sterling in Loudoun County, Virginia, United States, located five miles (8.0 km) north of the Washington Dulles International Airport. As of 2022, Dulles Town Center currently features traditional tenants Macy's, JCPenney, and Dick's Sporting Goods. It currently features retailers Banana Republic, American Eagle, Hollister, H&M, and Ann Taylor. It encompasses 1,400,000 square feet (130,000 m2) of GLA and is the sole enclosed shopping center in Loudoun County. The mall serves a wide geographic area, drawing customers from Loudoun, Fairfax, Clarke, and Frederick counties in Virginia, as well as Jefferson County, West Virginia.