Mt Ida (Ellicott City, Maryland)

The Ellicott City Jail was the first detention facility in Howard County, Maryland.

Patapsco Female Institute (PFI) is a former girls' boarding school, now a partially rebuilt historical site, located on Church Road in Ellicott City, Maryland, United States. The grounds are home to popular outdoor theatrical performances by The Chesapeake Shakespeare Company. In the 1930s the Institute was also known as "Warwick".

The Patapsco Hotel is historic granite building located in Ellicott City, Maryland, on the western bank of the Patapsco River. The current Patapsco Hotel is built with materials from an older granite construction hotel on the same site and is known as the Thomas' Patapsco Hotel, Wilson Patapsco Hotel, Stewart's Hotel, and McGowan's Hotel. The original Thomas' Hotel was four stories tall made of local quarried granite stone block. The rear wall of the first floor is imbedded into a solid granite hillside. It served as a stagecoach stop along the National Pike road. The hotel was later called Stewart's Hotel featuring a bar and bowling alley. In 1806, Chief Little Turtle of the Miami people, Chief of the Rusheville people, Beaver Crow of the Delawares, Chiefs of the Shawanese, and the chief Raven of the Potowatomies visited George Ellicott staying at his home and the Hotel while returning from a visit to Washington, D.C. The second floor balcony led to and served as an unloading terminal for the B&O Railroad at Ellicott's Mills. Henry Clay once performed a speech from the balcony during a presidential campaign. During the civil war, the hotel was considered a host of Southern Sedition. The hotel operated as late as 1879. For a period the hotel was used for an ice house for a period. In 1920, the hotel owned by Hezekiah I Thomas was not in use with the windows broken and the county condemned the property. In 1926, a wall adjacent to the railroad collapsed, causing streetcar service to be halted. Passenger cars had to halt as an inspector checked for enlargement of cracks before they could pass the building. A 12-bay-wide, four-bay-deep three-story building was constructed on the same site with the same granite stones named the Patapsco Hotel. The original foundation was used, including some standing walls. The building was converted into an apartment house in the 1940s. The building now houses shops on the bottom floor and apartments above. The property later was purchased by Samuel H. Caplan, who operated several long-standing businesses in Ellicott City.

First Presbyterian Church is a historic church in Ellicott City, Howard County, Maryland adjacent to the Howard County Circuit Courthouse. The church is a cruciform shaped structure made of granite stone construction. The building was expanded and rebuilt after a basement collapse during construction in April 1894. The congregation relocated in 1960. Mrs. James A. Clark, Sr. purchased the church and donated it to the Howard County Historic Society.

The Baltimore and Ohio Ellicott City Station Museum in Ellicott City, Maryland, is the oldest remaining passenger railway station in the United States, and one of the oldest in the world. It was built in 1830 as the terminus of the Baltimore and Ohio Railroad line from Baltimore to the town then called Ellicott's Mills, and a facility to service steam locomotives at the end of the 13-mile (21 km) run. The station, a National Historic Landmark, is now used as a museum.

Saint Paul Catholic Church is a Catholic parish located in Ellicott City, Maryland. It was founded in 1838 and is part of the Archdiocese of Baltimore. Babe Ruth married here. It is a two-story ashlar granite church which faces north. It is three bays wide and four bays deep. Its front facade includes two twin Roman arch windows each topped by a rose window, enclosed within a Roman arch lintel with keystone.

Ellicott City is an unincorporated community and census-designated place in, and the county seat of, Howard County, Maryland, United States. Part of the Baltimore metropolitan area, its population was 75,947 at the 2020 census, making it the most populous unincorporated county seat in the country. Ellicott City's historic downtown – the Ellicott City Historic District – lies in the valleys of the Tiber and Patapsco rivers. The historic district includes the Ellicott City Station, which is the oldest surviving train station in the United States, having been built in 1830 as the first terminus of the original B&O Railroad line. The historic district is often called "Historic Ellicott City" or "Old Ellicott City" to distinguish it from the surrounding suburbs that extend south to Columbia and west to West Friendship.

Rock Hill College was a boys' boarding school located in Ellicott City, Maryland. The school was divided into two departments: preparatory (for ages nine and up) and collegiate. The curriculum was based on physical education, sciences, and classical studiesRock Hill College was founded in 1824 as Rock Hill Academy and purchased in 1857 by the Institute of the Brothers of the Christian Schools (known as the Christian Brothers); Rock Hill College is sometimes referred in older publications as the Christian Brothers College. In 1865 The College was incorporated as Howard County's only college and construction of the four-story stone building was completed. During the Civil War, the college basement served as a hospital for Northern and Southern troops. In 1866, Brother Azarias (Patrick Francis Mullany) was called to be a professor of mathematics and literature at Rock Hill College. He was President of Rock Hill from 1879 to 1886. Baltimore architect George A. Frederick was involved in the architectural design of Rock Hill College. Classes included Greek and Latin. Though not a parochial school, St. Paul's Catholic Church in Ellicott City created a chapel for the students of Rock Hill College in 1859. The side chapel eventually became part of the church proper. The building was destroyed by fire on 16 January 1923 while most were in attendance at a basketball game. A chimney fire spread to the dormitory roof, burning all but the gymnasium. The school merged with Calvert Hall College High School in Baltimore. A new elementary school was built within the existing walls in 1926 and remained until 1976, when Worthington Elementary School opened. In 1991, the property was rehabilitated into Greystone condominiums, a residential condominium and townhouse development.

Ellicott City Historic District is a national historic district in Ellicott City, Howard County, Maryland. The Ellicott City Station is a National Historic Landmark located within the district. The district encompasses a predominantly 19th century mill town whose origins date to 1772, including more than 200 18th- and 19th-century buildings. It was listed on the National Register of Historic Places in 1978. The 2016 Maryland flood severely impacted the historic district on July 30, 2016, as did another flood on May 27, 2018.It includes the Saint Paul Catholic Church, a church where Babe Ruth got married.

George Ellicott House is a historic house located in Oella in Baltimore County, Maryland, United States. George Ellicott was a son of Andrew Ellicott, one of several brothers that founded Ellicott Mills (Ellicott City). George Ellicott bought swampland after the colonial war now known as the Inner Harbor of Baltimore. He used a horse drawn dredge to create shipping docks for his flour supplies.The George Ellicott House was built in Oella on the eastern shore of the Patapsco River opposite Ellicott City. The granite house was built in 1789. It resided on the grounds of the Wilkens-Rodgers flour mill. In 1972 the house was flooded by Hurricane Agnes and his brother Jonathan's neighboring house was destroyed. In 1983 the Maryland General assembly contributed $135,000 toward the $1 million expense of moving the house to higher ground on the other side of the street it resided on. The move was facilitated by a partnership between Historic Ellicott City Inc., James A. Clark, Jr., Judge John L Clark, and the Oella Company.

Woodlawn or Papillon was amanor home in Ellicott City, Howard County, Maryland in the United States. Woodlawn was built by Thomas Beale Dorsey. The estate featured two entrances to avoid a toll on the old Frederick turnpike and a carriage house outbuilding. Between the 1880s and 1890s, it was the home of the Rodgers family (of Rodgers Avenue). Walter K. Plum of the American Oil Company named the estate Woodlawn Manor, the same name as an estate several miles westward. In 1947 the estate was the home of Dorsey Williams and Frances Lurman in 1947. In 1953 Dr. Allen Jones owned the property, followed by Keith Garret in 1970. In 1976 the owner attempted to convert the property to a motel. The estate was converted to a country inn. The property was owned in the 1970s by Investor's Developers inc, who subdivided the estate to 26 acres and converted the manor to the Pauvre Papillon restaurant serving French cuisine.Following the Ellicott City fire of 11 November 1984, the owner of the Chez Fernand Restaurant attempted to relocate to Papillon. The asking price at the time was $3 Million dollars, and the owner chose to move to Baltimore instead. The estate was razed for a development of 112 townhouses in 1995 by Security Development Corporation, a company founded by family members of former county Commissioner Norman E. Moxley, and Robert Moxley chief land purchaser for the Rouse Company project of Columbia. The Howard County Department of Planning and Zoning approved the permits but claimed not to be aware that the site was historic. Vice president Steve Breeden told the press that nobody would want to live in the historic mansion, especially after recent fire damage. Woodlawn was one of many historical buildings in the region with valuable real estate that was developed after a fire set to the structure, including Troy Hill (1990), Avondale Mill (1991), St. Mary's College (1997), Ammendale Normal Institute (1998), Phelps Log Cabin - Moved from North Laurel to Elkridge (2001). Henryton State Hospital (2007), (2011)

Ellicott's Mills Historic District is a national historic district at Oella, Baltimore County, Maryland, United States. It is on the east bank of the Patapsco River, opposite Ellicott City. This historic district designation relates to the industrial operations of the Ellicott family from the 1770s through the mid-19th century. It consists of the sites of historic buildings including: an 18th-century building, a section of an 18th-century mill incorporated in a 20th-century factory, a 19th-century tavern, 19th-century workers housing, and an 1859 Italianate villa built by John Ellicott. Historically, these industrious mills were served by the major east–west route in Maryland during the early 19th century, the old National Pike. Also in the district is the mammoth multi-story Wilkins-Rogers Company flour plant, which is located on the site of the 1792 Ellicott Flour Mill, the first merchant flour mill in the United States.It was added to the National Register of Historic Places in 1976.