Hidden Valley Farm

Hydes is an unincorporated community in Baltimore County, Maryland, United States. It is located in the Long Green Valley. The USPS has assigned Hydes the postal code 21082. Saint John the Evangelist church is located in Hydes and is the oldest Roman Catholic Church in Baltimore County. Until 1958, this community was served by the Maryland and Pennsylvania Railroad at milepost 16.8. It is also home to several wineries, including Boordy and Dejon Vineyards. Hydes is named for Samuel N. Hyde, an agronomist who developed a strain known as "Egyptian" sweet corn, canned by the F.B. Jenkins canning operation of Hydes.

Baldwin is an unincorporated community in Baltimore County, Maryland, United States. The USPS has assigned Baldwin the ZIP Code 21013. Until 1958, this community was served by the Maryland and Pennsylvania Railroad at milepost 18.4. Hidden Valley Farm was listed on the National Register of Historic Places in 1983.

Prospect Hill is a historic home located at Long Green, Baltimore County, Maryland, United States. It was designed by architect William Thornton and built between 1796 and 1798. It is a 2+1⁄2-story Federal style brick house.Prospect Hill was listed on the National Register of Historic Places in 1973.

Long Green Valley Historic District is a national historic district in Baltimore County, Maryland, United States. It is an approximately 6,066-acre (24.55 km2) rural agricultural area to the northeast of the city of Baltimore. The valley has a distinct physical unity created by gently rolling fields dotted with crossroads villages such as Glen Arm, Baldwin, and Hydes and farm complexes. Its architecture covers the 18th, 19th, and early 20th centuries and reflect major architectural styles popular in the United States from the Neoclassical of the 18th century to the Georgian Revival of the pre 1935 period.It was added to the National Register of Historic Places in 1982.

Taylor is an unincorporated community in Harford County, Maryland, United States. Ladew Topiary Gardens and House was listed on the National Register of Historic Places in 1976.

Ravenshurst, or Ravenhurst, was a historic home located at Glen Arm, Baltimore County, Maryland, United States. It was a 2+1⁄2-story Carpenter Gothic-style board-and batten house built about 1854–1857. It was an addition to an earlier stone building thought to have been built about 1800. The home burned on October 31, 1985. Ravenshurst was listed on the National Register of Historic Places in 1978.

Ladew Topiary Gardens (22 acres (8.9 ha)) are nonprofit gardens with topiary located in Monkton, Maryland. The gardens were established in the 1930s by socialite and huntsman Harvey S. Ladew (1887–1976), who in 1929 had bought a 250-acre (100 ha) farm to build his estate. The house and gardens are open April through October, weekdays and weekends; an admission fee is charged. The grounds contain 15 garden rooms, each devoted to a single color, plant or theme, arranged around two cross axes with vistas. The axes meet in an oval swimming pool. The garden is particularly noted for its topiary, which was strongly influenced by Ladew's extensive travel in England, where he frequently went fox hunting. Ladew designed topiaries depicting a fox hunt with horses, riders, dogs, and fox clearing a hedge, a Chinese junk with sails, swans, and a giraffe, among others. It was proclaimed an "exquisite garden estate" by The New York Times. The Garden Club of America has described it as "the most outstanding topiary garden in America." The grounds also contain a 1.5-mile (2.4 km) nature walk. The house was built in stages, starting in the late 18th century, with a mid-19th century addition and other additions in the 20th century. The oval library is particularly noteworthy, and has been called "one of the 100 most beautiful rooms in America". Both the grounds and house, which contains a good collection of antique English furniture, opened to the public in 1971.

Long Green is an unincorporated community in Baltimore County, Maryland, United States. Until 1958, the community was served by the Maryland and Pennsylvania Railroad at milepost 15.8. Prospect Hill was listed on the National Register of Historic Places in 1973.Long Green was once home to an Amish community. The Amish community in Long Green was founded in 1833 and lasted for 120 years, before disappearing in the 1950s. The community was founded by Lancaster County Amish, but few settlers moved to the area because Maryland was a slave state at the time. Few Amish people crossed the Mason–Dixon line, due to the Amish opposition to slavery. An Amish meetinghouse was constructed in 1899, but the community never grew large. The community dwindled in size over time, with the last Amish person dying in 1953. One of the oldest buildings in Long Green is the Wilson United Methodist Church, built in 1892 in the Gothic Revival style. A previous Methodist meeting house was built in 1839 on land donated by George Wilson, for whom the present church is named. In 1787, noted Methodist leader Francis Asbury preached in the Long Green farmhouse of Wilson's great-uncle. The church's cemetery dates back to the 1850s.

Fallston is a census-designated place (CDP) in Harford County, Maryland, United States. The population was 8,958 at the 2010 census, up from 8,427 in 2000. Fallston is a semi-rural community consisting mostly of farms and suburban-like developments.

Glen Arm is an unincorporated community in Baltimore County, Maryland, United States. Glen Arm lies along what is now Glen Arm Road, which was once part of Old Harford Road, one of the early routes used for conveying agricultural products from parts of Harford and Baltimore Counties and southern Pennsylvania to the port of Baltimore. Glen Arm was also served until 1958 by the Maryland and Pennsylvania Railroad (the "Ma & Pa"). In 1921, at the railroad's crossing of Glen Arm Road, what generally is recognized as the nation's first train-actuated railroad crossing signal was installed by the railroad's Superintendent of Signals Charles Adler, Jr. Adler later designed early traffic-actuated traffic lights for the City of Baltimore, and also invented the system of flashing warning lights used on aircraft.

St. James Church is a historic Episcopal church located at Monkton, Baltimore County, Maryland, US.

Jarrettsville is an unincorporated community and census-designated place (CDP) in Harford County, Maryland, United States. The population was 2,888 at the 2020 census.