List of National Historic Landmarks in Maryland

Columns: Landmark name | Date designated | Location | County | Description
1 | Accokeek Creek Site | July 19 , 1964 ( # 66000909 ) | Accokeek 38°41′46″N 77°03′07″W / 38.696028°N 77.051833°W / 38.696028 ; -77.051833 ( Accokeek Creek Site ) | Prince George 's | Archaeological site of a palisaded village occupied from ca . A.D. 1300 to ca . 1630 | 2 | Army Medical Museum and Library | January 12 , 1965 ( # 66000854 ) | Silver Spring 39°00′32″N 77°03′14″W / 39.008889°N 77.053889°W / 39.008889 ; -77.053889 ( Army Medical Museum and Library ) | Montgomery | This listing presently encompasses a US military medical records and research collection that dates to the 1860s . The original building in Washington , D.C. was demolished in 1969 ; the collection is now principally with the National Museum of Health and Medicine . The landmark designation is undergoing review | 3 | BALTIMORE ( Tug ) | November 4 , 1993 ( # 93001613 ) | Baltimore 39°16′22″N 76°36′01″W / 39.27270°N 76.60027°W / 39.27270 ; -76.60027 ( BALTIMORE ( Tug ) ) | City of Baltimore | Oldest steam-powered tugboat in operation in the United States | 4 | Baltimore and Ohio Transportation Museum and Mount Clare Station | September 15 , 1961 ( # 66000906 ) | Baltimore 39°17′01″N 76°37′57″W / 39.28352°N 76.63240°W / 39.28352 ; -76.63240 ( Baltimore and Ohio Transportation Museum and Mount Clare Station ) | City of Baltimore | Part of oldest American railyard ; site of first passenger rail service and first telegraph message . Collections of 19th- and 20th-century artifacts related to America 's railroads ; 250 pieces of railroad rolling stock ; 15,000 artifacts ; four nineteenth-century buildings , including the historic roundhouse ; a mile of historic track . Larg | 5 | Clara Barton House | January 12 , 1965 ( # 66000037 ) | Glen Echo 38°58′03″N 77°08′28″W / 38.96756°N 77.14114°W / 38.96756 ; -77.14114 ( Clara Barton House ) | Montgomery | Home of Clara Barton ; American pioneer teacher , nurse , and humanitarian ; founder of the American Red Cross | 6 | Bollman Truss Railroad Bridge | February 16 , 2000 ( # 72000582 ) | Savage 39°08′05″N 76°49′31″W / 39.134722°N 76.825278°W / 39.134722 ; -76.825278 ( Bollman Truss Railroad Bridge ) | Howard | Sole surviving example of the first successful all-metal bridge design to be adopted and consistently used on a railroad | 7 | Brice House | April 15 , 1970 ( # 70000259 ) | Annapolis 38°58′45″N 76°29′14″W / 38.97917°N 76.48722°W / 38.97917 ; -76.48722 ( Brice House ) | Anne Arundel | Preserved 18th century Georgian style brick house

Example questions:
Who designed a house , current National Historic landmark in Maryland , in the county seat of Anne Arundel County ? | What is the population of the county where a current National Historic landmark in Maryland known as Moyaone is ? | How far north of Washington D.C. is the is the city with a current National Historic landmark in Maryland at 12 West Franklin Street is ? | What is the population of the county where a current National Historic landmark in Maryland was built in 1830 ?

Answers:
William Buckland | 863,420 | 40 miles | 287,085