St. Stephens African Methodist Episcopal Church

Sheppard Pratt at Elkridge is a private psychiatric hospital under construction in Elkridge, Maryland. The hospital will serve as a replacement location for nearby Sheppard Pratt at Ellicott City.

Troy, also known as Troy Hill Farm, is a historic slave plantation home located at Elkridge, Howard County, Maryland, United States. It is associated with the prominent Dorsey family of Howard County, who also built Dorsey Hall.

Trinity Church is a historic Episcopal church located at Elkridge, Howard County, Maryland. The post road site was also known as Waterloo, Pierceland, Jessop and Jessup throughout the years. It was built starting on July 30, 1856, through 1857 as a chapel-of-ease in Queen Caroline Parish, the mother church of which was, and still is, Christ Church Guilford, near Columbia, Maryland. The church land was donated from William G. Ridgley and Dr. Lennox Birckhead, a Catonsville doctor who served in the Battle of Fort McHenry. The land was once part of Charles Carroll of Carrollton's land that comprised Spurrier's Tavern. Theodore Tubman and Myers Pearce (of Pierceland) deeded the cemetery to the north of the church as "Chapel hill". The first rector of Trinity Chapel, Alexander X. Berger served in 1857. Columbia's Berger road development is named after him. Berger resigned in 1861 at the outbreak of the civil war. In 1866, Trinity Chapel broke away from Christ Church Guilford, becoming Trinity Church.The church structure is a rectangular frame church of three bays with shingled walls and on the east end, a semi-octagonal apse of stone. Major additions to the original structure took place ca. 1890.It was listed on the National Register of Historic Places in 1974.

Troy Park is a regional park comprising 101 acres in Elkridge, Maryland. The park is located at 6500 Mansion Lane off Washington Boulevard, near the intersection of Maryland Route 100 and I-95.Troy Park currently features several athletic fields, a playground, and trails. Once completed, the park will include pathways, comfort stations, an indoor sports complex, a community center, and a newly renovated Troy Mansion. All phases of the park's construction are expected to be finished by 2018.

Oak Hill is a historic manor located at Jessup, Maryland, United States. Oak Hill is a historic manor on a 235-acre farm between the Dorsey's Branch of the little Patuxent and the Old Annapolis road. The site is now dominated by the I-95 and Route 175 interchange, and the Port Capitol drive housing development, known as "Port Capital Village".The manor houses were built and maintained by the Orson Adams (1835–1907) family. Adams was the president of the Commercial National Bank of New York, using Oak Hill as a summer home. A Victorian manor house and an English Manor house were built onsite and noted in 1876 Hopkins maps. For a period they operated as antique stores before being purchased by the Rouse Company for land development. Within ten years of ownership by Rouse, both historic structures were omitted from the historic register, and burned down. Oak Hill was one of many historical buildings in the region with valuable real estate that was developed after a fire set to the structure, including Ammendale Normal Institute (1998), Troy Hill (1990), Duvall Farm, Avondale Mill (1991), St. Mary's College (1997), and Henryton State Hospital (2007, 2011).The Oak Hill youth detention complex in neighboring Anne Arundel County was named after the historic location.

Pfeiffers Corner is an unincorporated area located in Howard County in the state of Maryland, United States. The community straddles the border between the census-designated places of Columbia and Ilchester. The postal community is home to the prominent Pfeiffer family, who owned Troy Hill. The 1895 Pfeiffers Corner Schoolhouse was converted to a private home, then moved to Rockburn Park.

Waterloo is an unincorporated community located in Howard County in the U.S. state of Maryland. Located at the intersection of Waterloo Road and Washington Boulevard, the neighborhood is encompassed mostly by Jessup and partially by Elkridge.

Spurrier's Tavern was a well-known tavern and horse-changing depot which stood by the main road between Baltimore and Washington, D.C. (now U.S. Route 1) from 1771 to 1835 near what is now Jessup, Maryland. George Washington visited the tavern several times during his presidency. After an 1835 fire, the building was repaired for residence by the family of its owner, who died there in 1852. It was demolished sometime thereafter.

Worthington's Quarters, White Hall, Glen Burnie, Iris Hill, is a historic forced-labor farm in Columbia in Howard County, Maryland, United States. The stucco-covered brick plantation house resides on a 150-acre tract, "Wincopin Neck", surveyed for Richard and Benjamin Warfield. The land tract "Worthington's Addition" was also considered part of the estate when started as early as 1710. Richard Warfiled II (??-1755) hired out the property (called "Warfield's Contrivance") and house to Alexander Warfield and Elizabeth Ridgely in 1755, who had opened and operated a mill in 1750, downstream from the site at Guilford, Maryland. Rezin and Honor (Howard) Warfield lived onsite next. Their daughter Anne Warfield and Revolutionary War Major Richard Lawrance settled there next, calling the manor "White Hall". Dr. Charles Griffith Worthington purchased the lands and manor, passing it to his son Brice Worthington, and later his nephew Dr. William Henry Worthington (1812-1886). By 1858, five generations of the family were buried in the onsite family graveyard.The site is located along the Middle Patuxent River, which once stood two bridges leading to Laurel. In 1936, the vacant estate was known as the Hegemen House.

Mount Zion United Methodist Church, is a historic African American Church located at 8537 Main Street in Ellicott City, Maryland. The building was constructed in 1874.

The Patuxent Institution is located in Jessup, Maryland one mile east of U.S. Route 1 on Maryland Route 175. It is a treatment-oriented maximum-security correctional facility. With a maximum static capacity of 987 beds, it offers the most diverse services to the most varied male and female offender population in the state, and possibly in the nation. Patuxent Institution is the only institution for sentenced criminals in Maryland that is not part of the Maryland Department of Public Safety and Correctional Services. Its foundation lies in the Maryland Public General Law, codified as Title 4 of the Correctional Services Article. The predecessor of this statute, Article 31B of the Public General Laws of Maryland, was enacted in 1951.

Rockburn Branch Park is a local park in Elkridge, Maryland that follows the Rockburn Branch, a tributary of the Patapsco River. The park features 7.4 miles of trails, 10 ball diamonds, 2 turf fields, 4 smaller fields, along with tennis and basketball courts. The park is also home to the Pfeiffers Corner Schoolhouse, Clover Hill Historic House, and Rockburn Elementary School.