List of National Historic Landmarks in Maryland

Columns: Landmark name | Date designated | Location | County | Description
15 | Colonial Annapolis Historic District | June 23 , 1965 ( # 66000383 ) | Annapolis 38°58′41″N 76°29′29″W / 38.978056°N 76.491389°W / 38.978056 ; -76.491389 ( Colonial Annapolis Historic District ) | Anne Arundel | NRHP 66000383 , and boundary increase NRHP 84003875 , in 1984 | 16 | USS CONSTELLATION ( Frigate ) | May 23 , 1963 ( # 66000918 ) | Baltimore 39°17′03″N 76°36′42″W / 39.28426°N 76.61166°W / 39.28426 ; -76.61166 ( USS CONSTELLATION ( Frigate ) ) | City of Baltimore | Constructed in 1854 ; sloop-of-war , or corvette ; second United States Navy ship to carry this famous name | 17 | Doughoregan Manor | November 11 , 1971 ( # 71000376 ) | Ellicott City 39°16′36″N 76°53′35″W / 39.276667°N 76.893056°W / 39.276667 ; -76.893056 ( Doughoregan Manor ) | Howard | Built in 1766 ; until 1832 home of Charles Carroll , last surviving signer of the Declaration of Independence | 18 | EDNA E. LOCKWOOD ( Bugeye ) | April 19 , 1994 ( # 86000258 ) | St. Michaels 38°47′08″N 76°13′10″W / 38.78568°N 76.21941°W / 38.78568 ; -76.21941 ( EDNA E. LOCKWOOD ( Bugeye ) ) | Talbot | Built in 1889 ; Chesapeake Bay bugeye ; last working oyster boat of her kind | 19 | Ellicott City Station | November 24 , 1968 ( # 68000025 ) | Ellicott City 39°15′56″N 76°47′43″W / 39.26544°N 76.79529°W / 39.26544 ; -76.79529 ( Ellicott City Station ) | Howard | 20 | First Unitarian Church | November 7 , 1973 ( # 72001495 ) | Baltimore 39°17′36″N 76°36′58″W / 39.29340°N 76.61611°W / 39.29340 ; -76.61611 ( First Unitarian Church ) | City of Baltimore

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