In 1960, predating the National Historic Preservation Act, the National Park Service designated the Maryland State House a National Historic Landmark, one of the first in the nation. The State House Trust was established in 1969 to oversee the preservation of the State House buildings, grounds, and its interpretation to the public.

Semi-permanent structures like this were constructed and used by Indigenous peoples in what is now Maryland for hundreds of years. Made from a variety of local materials including wood, small saplings, wovens matts, and grasses, buildings like these were used for storage and everyday life. Archaeologists are able find evidence of these structures by the marks they leave behind in the soil.

The cabin housed the tree Black man,lames H. Webb and his recently freed wife, Mary Ann, along with other family members. The original foundation of the house remains with the rest naving been reconstructed. It IS the only remaining house on the Hastern Shore built by a free Black person before the Civil War. The Webb Cabin is owned and maintained by the Caroline Historical Society, and is one of more than 30 sites on the Harriet Tubman Underground Railroad Byway.

This iconic Baltimore structure was part of the Emerson Drug Company headquarters and manufacturing plant for the powder headache pain reliefmedicine Bromo-Seltzer. Today it houses The Baltimore Office of Promotion &The Arts.

Built in the Gothic Revival style, the Mount Vernon United Methodist Church
stands beside the Washington Monument
in Baltimores historic Mount Vernon
Place. Acquired by UNITE Mount Vernon
Inc. in July 2025, the landmark will be preserved and adaptivelv reused as
community hub with event space and mission-aligned commercial uses. The congregation will continue worshipping on-site, while the project supports the transformation of Mount Vernon Place into one of the nations premier urban parks. Preservation Maryland provided essential fiscal sponsorship.

The Stanley Institute. previously called the Rock School,isanearlypost-CivilWarAfrican American school built and run independently by the local Black community. It was used as a school house until 1966 and is listed on the National Register of Historic Places. Today it is the 7th stop on the Harriet Tubman Byway, a self-guided driving tour that covers 45 sites related to the Underground Railroad.

Originally deeded in 1787. the house is one of twelve buildings that predate the current town name Brunswick, which was previously known as Berlin prior to 1890. Preservation Marylands Historic Property Redevelopment Program is currently working with the City of Brunswick on its rehabilitation into a community heritage space.

In continuous operation until 1954, the mill is a contributing resource to the Lower Deer Creek Valley National Historic District. located within SusquehannaState Park in Havre De Grace, Maryland. Preservation Marvland is currently working alongside the Maryland Park Service on the restoration of this vital resource that foreshadowed the rise of American industry in the 19th century.

The original structure was built in 1884. close to the new B&O Railroad that supplied its goods. After being destroyed by a fire it was rebuilt to be fireproof, including its iconic cast iron storefront. The building was the hrst recipient of a heart bomb, a fundraising strategy that engages local communities in the preservation of Distorie buildings. It is now maintained as part of the Rockville Historic District.

The congregation that built the church was first established at Claiborne’s settlement at Kent Pointe in the 1630s and is recognized as one of the oldest congregations in the state. Queen Anne’s County purchased the property in 2003 and its docents are members of the 
members Kent Island Heritage Society.

Sotterley is a campus of historic structures and is considered one of the oldest standing plantations in the U.S. It is also recognized by the UNESCO Roultes or Enslaved reoples Project as one of 31 Middle Passage arrival sites in the country. Today. Sotterley is the only tidewater plantation open to the public. It is a non-profit public charity governed by a Board of Trustees.

ca. 1930
Fort Hill High School in Cumberland, Maryland, was constructed between 1934 and 1937 utilizing $600,000 in federal funding from two major Franklin D. Roosevelt New Deal agencies: the Public Works Administration (PWA) funded the main school building, while the Works Progress Administration (WPA) paid for the football stadium, tennis courts, and surrounding grounds

ca. 1828
The Cove Point Lighthouse was established in 1828 to guide vessels navigating the Chesapeake Bay and the entrance to the Patuxent River. As one of the oldest continuously operating lighthouses on the Bay, the site preserves Maryland’s maritime heritage and demonstrates the importance of protecting historic navigation structures tied to the state’s coastal economy.

Gilpin Falls Covered Bridge is one of Maryland’s few surviving covered bridges and represents nineteenth-century timber bridge engineering. Preservation of the bridge protects an increasingly rare type of historic infrastructure and offers insight into the transportation networks that once connected rural communities and commerce.

The San Domingo School was founded around 1886 to educate African American children in the San Domingo community on Maryland’s Eastern Shore following Reconstruction. The current school building, completed in 1919, is a Rosenwald School, funded through a partnership among the Rosenwald Fund, the local African American community, and public education officials. Designed according to plans developed through the Tuskegee Institute, Rosenwald schools brought improved educational facilities to Black students across the segregated South. The San Domingo School is one of the best-preserved Rosenwald schools in Maryland.

The Johnsontown Tobacco Barn No. 2 is an early-19th-century tobacco barn that provides evidence of the first use of fires for curing tobacco. The barn was constructed c. 1820 at the edge of an agricultural field on the north side of Johnsontown Road near LaPlata, Maryland. The barn is significant as one of only a few documented tobacco barns in Southern Maryland with evidence of the fire-curing process.