Table:
text: List of public art in Washington, D.C., Ward 6
List of public art in Washington, D.C., Ward 6
List of public art in Washington, D.C., Ward 6
Title Artist Year_ Location_GPS_Coordinates Material Dimensions Owner_
District Building Allegorical Roofline Figures Adolfo Nesti ca. 1907–1908 1350 E St., N.W. Washington Marble 28 figures. Each figure: H. 8 ft. John A. Wilson Building
American Legion Freedom Bell Unknown 1975 Union Station 38°53′47.6″N 77°0′23.53″W﻿ / ﻿38.896556°N 77.0065361°W Bronze & Concrete 8 tons National Park Service
The Progress of Railroading Louis Saint-Gaudens  Union Station   
Senate Garage Fountain   N. Capital & D St., N.E. Granite  
John Philip Sousa Terry Jones 2005 7th St. & Virginia Ave., S.E. Bronze  
Peace Monument Franklin Simmons 1877 Peace Circle Marble Approx. 40 × 10 × 10 ft. Architect of the Capitol

text: List of public art in Washington, D.C., Ward 6
List of public art in Washington, D.C., Ward 6
List of public art in Washington, D.C., Ward 6
Title Artist Year_ Location_GPS_Coordinates Material Dimensions Owner_
National Law Enforcement Officers Memorial Raymond Kaskey 1991 E Street, between 4th & 5th Streets, N.W. , 38°53′48.28″N 77°1′3.19″W﻿ / ﻿38.8967444°N 77.0175528°W Bronze Lions: approx. 70 × 35 × 118 in.; Cubs: approx. 25 × 37 × 64 in. 
Lily Pond David Phillips  Between the Canadian Embassy and the U.S. Courthouse. Bronze  
She Who Must be Obeyed Tony Smith  Frances Perkins Building Steel  
Slow Rondo   United States National Academies, Keck Center   
Dwight D. Eisenhower Memorial Frank Gehry  38°53′14″N 77°1′10″W﻿ / ﻿38.88722°N 77.01944°W   National Park Service
Spirit of Haida Gwaii Bill Reid 1988 , Cast: 1991 Canadian Embassy Bronze 13.2 ft. h. × 20 ft. l., 11,000 lbs. Canadian Embassy
Chthonodynamis Robert Russin 1992 United States Department of Energy Granite  
Heroic Shore Points James Rosati ca. 1976 Hubert H. Humphrey Building Aluminum  

text: List of public art in Washington, D.C., Ward 6
List of public art in Washington, D.C., Ward 6
List of public art in Washington, D.C., Ward 6
Title Artist Year_ Location_GPS_Coordinates Material Dimensions Owner_
Victims of Communism Memorial Tiananmen Square protesters of 1989, statue recreated by Thomas Marsh June 12, 2007 (dedication) Massachusetts and New Jersey Avenues and G Street, N.W. , 38°53′55″N 77°00′43″W﻿ / ﻿38.898489°N 77.012053°W Bronze 10 feet tall (3 m) Victims of Communism Memorial Foundation
National Japanese American Memorial To Patriotism During World War II Nina Akumu & Paul Matisse 2000 Louisiana Ave., New Jersey Ave. & D St., N.W. , 38°53′40″N 77°00′38″W﻿ / ﻿38.894523°N 77.010488°W Bronze & barbed wire  National Park Service
George Gordon Meade Memorial Charles Grafly 1927 Constitution Ave. & Pennsylvania Ave, N.W. 38°53′31.67″N 77°0′59.2″W﻿ / ﻿38.8921306°N 77.016444°W   

text: List of public art in Washington, D.C., Ward 6
List of public art in Washington, D.C., Ward 6
List of public art in Washington, D.C., Ward 6
Title Artist Year_ Location_GPS_Coordinates Material Dimensions Owner_
Commodore John Paul Jones Charles Henry Niehaus 1912 West Potomac Park , 38°53′18″N 77°2′22″W﻿ / ﻿38.88833°N 77.03944°W Bronze Sculpture: bronze; Base: granite or Vermont marble; Pylon: marble. Fountains: marble. United States Department of the Interior
Drafting the Declaration of Independence Adolph Weinman 1943 East Potomac Park 38°52′53.17″N 77°2′11.81″W﻿ / ﻿38.8814361°N 77.0366139°W Marble Pediment: approx. H. 10 ft. W. 65 ft. National Park Service
Jefferson Memorial: Thomas Jefferson Rudulph Evans 1943 East Potomac Park , 38°52′53″N 77°2′12″W﻿ / ﻿38.88139°N 77.03667°W Bronze Sculpture: H. 19 ft.; Base: H. 6 ft. National Park Service
The Progress of Railroading Louis St. Gaudens 1908 Union Station Granite 6 figures. Each figure: H. 18 ft.

Question: How many are owned by the National Park Service under the Washington DC Ward 6 public art list?