Bel Air Courthouse Historic District

Harford National Bank is a historic bank building located at Bel Air, Harford County, Maryland. It is a one-story, with day-light basement built in a modified Richardson Romanesque style of glazed red brick and rusticated brownstone. It was designed by architect George Archer in 1889.It was listed on the National Register of Historic Places in 1980.

The Graham-Crocker House is a historic home located at 30 North Main Street, Bel Air, Harford County, Maryland, United States. It is a 2+1⁄2-story frame dwelling with a shed addition to the south and an ell to the west, and dating to about 1825.The Graham-Crocker House was listed on the National Register of Historic Places in 1980.

Odd Fellows Lodge, also known as Old First Presbyterian Church, is a historic building in Bel Air, Maryland, United States. It was built in 1852, and is a one-story, temple-form, Greek Revival style brick building above a high basement. The front facade features a projecting portico supported by four Doric order columns. It was originally built for the First Presbyterian Church, who moved to a new church in 1881 and leased it to the Odd Fellows Lodge.It was listed on the National Register of Historic Places in 1975.

The town of Bel Air is the county seat of Harford County, Maryland. According to the 2020 United States census, the population of the town was 10,661.The United States Census Bureau defines an urban area in northeast Maryland in which Bel Air is the principal settlement: the Bel Air–Aberdeen, MD urban area had a population of 214,647 as of the 2020 census, making it the 180th most-populous in the United States.

Bel Air Armory is a historic National Guard armory located at Bel Air, Harford County, Maryland. It was constructed in 1915 of Port Deposit granite. The building consists of the main block, five bays by three, two stories over a raised basement, and the "drill hall" to the rear of the main block. The front elevation is detailed to recall Medieval fortifications and features two projecting hexagonal towers which rise to three stories and are topped by crenelated battlements finished in stone coping.It was listed on the National Register of Historic Places in 1985.

The Bel Air Police Department (BAPD) is a full-service agency servicing the incorporated Municipality of Bel Air, Maryland. The department is located in the Harford county seat of Bel Air at 39 North Hickory Avenue, Bel Air, Maryland 21014. BAPD is Bel Air's primary law enforcement agency which was established in 1874.

The Hays House is a historic home located at 324 South Kenmore Avenue, Bel Air, Harford County, Maryland, United States. It is a frame 1+1⁄2-story house with a gambrel roof, likely built in 1788 with an addition in 1811. The house was moved in 1960, and stands on a modern concrete-block foundation. The Hays House is owned by The Historical Society of Harford County and today the Hays House Museum offers visitors a glimpse into the life of an affluent family in late 18th century Bel Air.The Hays House was listed on the National Register of Historic Places in 1980.

Proctor House, also known as the Cassandra Gilbert House, is an historic home located at Bel Air, Harford County, Maryland, United States. It is a two-story detached Carpenter Gothic style cottage with board and batten siding, constructed between 1860 and 1873 and enlarged about 1884. The interior features an arched slate mantel painted to resemble several colors of inlaid marble.Proctor House was listed on the National Register of Historic Places in 1990.

Bel Air High School is a high school in Bel Air, Harford County, Maryland, United States. The current building opened in 2009, though the school's antecedents date back to 1715.

Bel Air Middle School (BAMS) is a public middle school in Bel Air, Maryland, United States. It is part of the Harford County Public Schools district.

Liriodendron is a historic home and estate located at Bel Air, Harford County, Maryland, United States. It was the summer home of Laetitia and Dr Howard Kelly, a successful surgeon and founding member of the Johns Hopkins Medical College, and comprises the mansion named Liriodendron; the Graybeal-Kelly House; a c. 1835 bank barn; a c. 1898 carriage house; a c. 1850 board-and-batten cottage; and five other outbuildings including a corn crib, a smokehouse, two ice houses, and a shed. The 2+1⁄2-story, stuccoed brick mansion was designed by the Baltimore architectural firm of Wyatt and Nolting in the Georgian Revival style and constructed about 1898. The 2+1⁄2-story Georgian-style Graybeal-Kelly House, built about 1835, was the manor house for the farm until the mansion was constructed. It is used as a wedding, conference, and arts facility. Liriodendron was listed on the National Register of Historic Places in 1980.

Bel Air Racetrack was a horse racing facility located one mile north of Baltimore Pike and east of Tollgate Road in Bel Air, Maryland. The 100-acre site was originally plotted in 1870 but was later improved and expanded in 1936 by new owner Ray Bryson to include a 3/4-mile race track, new starting gate, and larger grandstands. The track flourished until the 1940s when the owners became embroiled in political efforts to close the track.After Bryson died in 1958, the state legislature eventually prevailed and the track closed in 1962. The property is now the site of Harford Mall.