This article describes National Historic Landmarks in the United States state of Connecticut. These include the most highly recognized historic sites in Connecticut that are officially designated and/or funded and operated by the U.S. Federal Government. There are no UNESCO-designated World Heritage Sites in Connecticut. There are many additional historic sites in Connecticut that are federally recognized by listing on the National Register of Historic Places, but only those NRHP-listed sites meeting particularly higher standards are further designated as National Historic Landmarks.

Current National Historic Landmarks

[1]	Landmark name	Image	Date designated[2]	Location	County	Description
1	Richard Alsop IV House	More images	January 16, 2009 (#70000686)	Middletown 41°33′30″N 72°39′22″W / 41.5583°N 72.6561°W / 41.5583; -72.6561 (Richard Alsop IV House)	Middlesex	This distinctive house was built in the late 1830s in a transitional Greek-Italianate style. It now belongs to Wesleyan University.
2	A. Everett Austin House	More images	April 19, 1994 (#94001189)	Hartford 41°46′51″N 72°42′33″W / 41.7807°N 72.7092°W / 41.7807; -72.7092 (A. Everett Austin House)	Hartford	Social hotspot and home of innovative Wadsworth Atheneum director Arthur Everett Austin Jr.
3	Henry Barnard House	More images	December 21, 1965 (#66000803)	Hartford 41°45′25″N 72°40′33″W / 41.7569°N 72.6757°W / 41.7569; -72.6757 (Henry Barnard House)	Hartford	Home of educator instrumental in the development of the American public school system.
4	Barnum Institute of Science and History	More images	November 7, 1972 (#100009807)	820 Main St. 41°10′32″N 73°11′18″W / 41.175556°N 73.188333°W / 41.175556; -73.188333 (Barnum Institute of Science and History)	Fairfield County, Connecticut	Only surviving building associated with influential 19th-century entertainer P.T. Barnum.
5	Birdcraft Sanctuary	More images	April 19, 1993 (#82004371)	Fairfield 41°08′39″N 73°15′31″W / 41.1443°N 73.2587°W / 41.1443; -73.2587 (Birdcraft Sanctuary)	Fairfield	Oldest bird sanctuary in the U.S., where Mabel Osgood Wright originated "birdscaping".
6	Henry C. Bowen House (Roseland)	More images	October 5, 1992 (#77001414)	Woodstock 41°56′50″N 71°58′36″W / 41.9472°N 71.9768°W / 41.9472; -71.9768 (Henry C. Bowen House (Roseland))	Windham	Gothic revival summer cottage visited by three U.S. presidents.
7	Bush-Holley House	More images	July 17, 1991 (#88002694)	Greenwich 41°02′05″N 73°35′53″W / 41.0348°N 73.5980°W / 41.0348; -73.5980 (Bush-Holley House)	Fairfield	Home of Cos Cob Art Colony, c.1890-1920.
8	Buttolph–Williams House	More images	November 24, 1968 (#68000048)	Wethersfield 41°42′37″N 72°39′02″W / 41.7103°N 72.6505°W / 41.7103; -72.6505 (Buttolph–Williams House)	Hartford	Exemplifies traditional early New England design.
9	Charles W. Morgan (Bark)	More images	November 13, 1966 (#66000804)	Mystic 41°21′39″N 71°57′55″W / 41.3609°N 71.9652°W / 41.3609; -71.9652 (Charles W. Morgan (Bark))	New London	Only surviving wooden ship from the nineteenth-century American whaling fleet.
10	Cheney Brothers Historic District	More images	June 2, 1978 (#78002885)	Manchester 41°45′52″N 72°31′32″W / 41.764500°N 72.525500°W / 41.764500; -72.525500 (Cheney Brothers Historic District)	Hartford	A nineteenth century silk mill and traditional company town.
11	Russell Henry Chittenden House		May 15, 1975 (#75001944)	New Haven 41°18′48″N 72°55′23″W / 41.3134°N 72.9231°W / 41.3134; -72.9231 (Russell Henry Chittenden House)	New Haven	Home of Russell Henry Chittenden, the "father of American biochemistry".
12	Coltsville Historic District	More images	November 13, 1966 (#66000802)	Hartford 41°45′13″N 72°40′28″W / 41.7536°N 72.6745°W / 41.7536; -72.6745 (Coltsville Historic District)	Hartford	Originally designated solely to encompass Armsmear, the home of arms maker Samuel Colt, this historic district was expanded in 1988 to include the Colt Armory, as well as worker housing and Colt Park.
13	Connecticut Agricultural Experiment Station	More images	July 19, 1964 (#66000805)	New Haven 41°19′44″N 72°55′11″W / 41.3288°N 72.9196°W / 41.3288; -72.9196 (Connecticut Agricultural Experiment Station)	New Haven	Home of the first state agricultural experiment station
14	Connecticut Hall, Yale University	More images	December 21, 1965 (#66000806)	New Haven 41°18′22″N 72°55′46″W / 41.3062°N 72.9295°W / 41.3062; -72.9295 (Connecticut Hall, Yale University)	New Haven	Oldest building at Yale University
15	Connecticut State Capitol	More images	December 30, 1970 (#70000834)	Hartford 41°45′44″N 72°40′58″W / 41.7622°N 72.6828°W / 41.7622; -72.6828 (Connecticut State Capitol)	Hartford	Designed by Richard Upjohn in Gothic and French Renaissance styles topped by gold leaf dome
16	Prudence Crandall House	More images	July 17, 1991 (#70000696)	Canterbury 41°41′46″N 71°58′19″W / 41.6961°N 71.9719°W / 41.6961; -71.9719 (Prudence Crandall House)	Windham	Home of the abolitionist and educator Prudence Crandall
17	James Dwight Dana House	More images	January 12, 1965 (#66000874)	New Haven 41°18′48″N 72°55′25″W / 41.3132°N 72.9237°W / 41.3132; -72.9237 (James Dwight Dana House)	New Haven	Home of Yale geologist James Dwight Dana, designed by Henry Austin.
18	Silas Deane House	More images	November 28, 1972 (#70000835)	Wethersfield 41°42′42″N 72°39′10″W / 41.7116°N 72.6529°W / 41.7116; -72.6529 (Silas Deane House)	Hartford	Home of Silas Deane, member of the Continental Congress and America's first diplomat
19	Oliver Ellsworth Homestead	More images	December 20, 1989 (#70000707)	Windsor 41°52′43″N 72°37′29″W / 41.8787°N 72.6247°W / 41.8787; -72.6247 (Oliver Ellsworth Homestead)	Hartford	Home of Oliver Ellsworth, the third Chief Justice of the United States.
20	Emma C. Berry		October 12, 1994 (#94001649)	Mystic 41°21′35″N 71°57′59″W / 41.3598°N 71.9665°W / 41.3598; -71.9665 (Emma C. Berry)	New London	One of the oldest surviving commercial vessels in the United States.
21	First Church of Christ	More images	May 15, 1975 (#75002056)	Farmington 41°43′17″N 72°49′48″W / 41.7214°N 72.8300°W / 41.7214; -72.8300 (First Church of Christ)	Hartford	Church of the La Amistad freed slaves.
22	First Presbyterian Church	More images	January 13, 2021 (#100006271)	Stamford 41°03′47″N 73°32′19″W / 41.063°N 73.5385°W / 41.063; -73.5385 (First Presbyterian Church)	Fairfield	Aka the Fish Church, a major Modernist church design
23	Fort Shantok Archeological District		April 12, 1993 (#86000469)	Montville 41°28′40″N 72°04′40″W / 41.4778°N 72.0778°W / 41.4778; -72.0778 (Fort Shantok Archeological District)	New London	Mohegan settlement and home of the seventeenth century sachem Uncas.
24	Florence Griswold House and Museum	More images	April 19, 1993 (#93001604)	Old Lyme 41°19′31″N 72°19′35″W / 41.3254°N 72.3265°W / 41.3254; -72.3265 (Florence Griswold House and Museum)	New London	Boarding house frequented by American impressionist artists such as Henry Ward Ranger, Childe Hassam, and Willard Metcalf.
25	Grove Street Cemetery	More images	February 16, 2000 (#97000830)	New Haven 41°18′49″N 72°55′39″W / 41.3136°N 72.9275°W / 41.3136; -72.9275 (Grove Street Cemetery)	New Haven	Final resting place of many Yale and New Haven notables including Roger Sherman, Noah Webster and Eli Whitney.
26	Hill–Stead	More images	July 17, 1991 (#91002056)	Farmington 41°43′11″N 72°49′29″W / 41.7197°N 72.8248°W / 41.7197; -72.8248 (Hill–Stead)	Hartford	Colonial revival house and art museum located in the Farmington Historic District
27	Samuel Huntington Birthplace	More images	November 11, 1971 (#71001009)	Scotland 41°41′55″N 72°05′08″W / 41.6986°N 72.0856°W / 41.6986; -72.0856 (Samuel Huntington Birthplace)	Windham	Boyhood saltbox home of the American statesman Samuel Huntington, a signer of the Declaration of Independence, Governor of Connecticut and first presiding officer of the Congress of the Confederation
28	Philip Johnson Glass House	More images	February 18, 1997 (#97000341)	New Canaan 41°08′33″N 73°31′46″W / 41.1424°N 73.5294°W / 41.1424; -73.5294 (Philip Johnson Glass House)	Fairfield	Modern masterpiece of glass and steel; designed and occupied by architect Philip Johnson.
29	Kimberly Mansion		May 30, 1974 (#74002178)	Glastonbury 41°41′21″N 72°36′22″W / 41.6893°N 72.6060°W / 41.6893; -72.6060 (Kimberly Mansion)	Hartford	Home of Abby and Julia Smith, suffragists who successfully fought the town of Glastonbury on the issue of taxation without representation.
30	L. A. Dunton (schooner)	More images	November 4, 1993 (#93001612)	Mystic 41°21′23″N 71°57′58″W / 41.3565°N 71.9661°W / 41.3565; -71.9661 (L. A. Dunton (schooner))	New London	Classic fishing schooner and one of the last sail-powered fishing vessels built.
31	Litchfield Historic District	More images	November 24, 1968 (#68000050)	Litchfield 41°44′51″N 73°11′25″W / 41.7474°N 73.19015°W / 41.7474; -73.19015 (Litchfield Historic District)	Litchfield	Well-preserved late 18th-early 19th century New England town that was the state's first historic district.
32	Lockwood–Mathews Mansion	More images	November 30, 1970 (#70000836)	Norwalk 41°06′36″N 73°25′05″W / 41.1100°N 73.4180°W / 41.1100; -73.4180 (Lockwood–Mathews Mansion)	Fairfield	Second Empire style mansion built in 1864.
33	Othniel C. Marsh House	More images	January 12, 1965 (#66000875)	New Haven 41°19′18″N 72°55′24″W / 41.3218°N 72.9233°W / 41.3218; -72.9233 (Othniel C. Marsh House)	New Haven	Home of Yale paleontologist Othniel Marsh; now part of the Yale School of Forestry (Marsh Hall).
34	Mashantucket Pequot Reservation Archeological District		April 12, 1993 (#86001323)	Ledyard 41°27′32″N 71°58′22″W / 41.4589°N 71.9727°W / 41.4589; -71.9727 (Mashantucket Pequot Reservation Archeological District)	New London	Expansive district on the Mashantucket Pequot Reservation containing archaeological remains relevant to Pequot history.
35	Stephen Tyng Mather Home	More images	November 27, 1963 (#66000877)	Darien 41°06′45″N 73°28′27″W / 41.1126°N 73.4743°W / 41.1126; -73.4743 (Stephen Tyng Mather Home)	Fairfield	Home of conservationist Stephen Tyng Mather, who was instrumental in the formation of the National Park Service and served as its first director.
36	Lafayette B. Mendel House		January 7, 1976 (#76002138)	New Haven 41°18′40″N 72°55′06″W / 41.3112°N 72.9182°W / 41.3112; -72.9182 (Lafayette B. Mendel House)	New Haven	Home of Yale biochemist Lafayette Mendel; designed by Henry Austin
37	James Merrill House	More images	October 31, 2016 (#13000618)	Stonington 41°20′01″N 71°54′24″W / 41.333697°N 71.906633°W / 41.333697; -71.906633 (James Merrill House)	New London	Home of James Merrill, one of the most significant American writers of the second half of the 20th century.[3]
38	Monte Cristo Cottage(Eugene O'Neill House)	More images	July 17, 1971 (#71001010)	New London 41°19′56″N 72°05′45″W / 41.3322°N 72.0959°W / 41.3322; -72.0959 (Monte Cristo Cottage)	New London	Home of the Nobel prize-winning playwright Eugene O'Neill.
39	Edward W. Morley House		May 15, 1975 (#75002057)	West Hartford 41°45′27″N 72°45′12″W / 41.7575°N 72.7532°W / 41.7575; -72.7532 (Edward W. Morley House)	Hartford	Home of physicist Edward W. Morley, known for the Michelson–Morley experiment and for his work on the atomic weights of hydrogen and oxygen.
40	USS NAUTILUS (nuclear submarine)	More images	May 20, 1982 (#79002653)	Groton 41°23′13″N 72°05′17″W / 41.387°N 72.088°W / 41.387; -72.088 (USS NAUTILUS (nuclear submarine))	New London	The world's first operational nuclear-powered submarine.
41	New Haven Green Historic District	More images	December 30, 1970 (#70000838)	New Haven 41°18′29″N 72°55′37″W / 41.3080°N 72.9270°W / 41.3080; -72.9270 (New Haven Green Historic District)	New Haven	Large town green includes three historic churches.
42	Charles H. Norton House		May 11, 1976 (#76002139)	Plainville 41°39′37″N 72°53′07″W / 41.6603°N 72.8852°W / 41.6603; -72.8852 (Charles H. Norton House)	Hartford	Home of Charles H. Norton, the inventor of precision grinding equipment.
43	Old New-Gate Prison	More images	November 28, 1972 (#70000839)	East Granby 41°57′36″N 72°44′44″W / 41.9600°N 72.7456°W / 41.9600; -72.7456 (Old New-Gate Prison)	Hartford	Colonial prison; Loyalists were held here during the American Revolutionary War
44	Old State House	More images	December 18, 1960 (#66000878)	Hartford 41°45′57″N 72°40′24″W / 41.7658°N 72.6733°W / 41.7658; -72.6733 (Old State House)	Hartford	Federal style building designed by Charles Bulfinch and completed in 1796.
45	Capt. Nathaniel B. Palmer House	More images	June 19, 1996 (#96000971)	Stonington 41°20′34″N 71°54′23″W / 41.3427°N 71.9064°W / 41.3427; -71.9064 (Capt. Nathaniel B. Palmer House)	New London	Home of the pioneering Antarctic explorer and seal hunter Nathaniel Palmer.
46	Portland Brownstone Quarries		May 16, 2000 (#00000703)	Portland 41°34′32″N 72°38′36″W / 41.5756°N 72.6433°W / 41.5756; -72.6433 (Portland Brownstone Quarries)	Middlesex	These quarries, active since 1690, were the source of vast quantities of brownstone for New York City, Philadelphia, Boston, other urban areas' buildings.
47	Tapping Reeve House and Law School	More images	December 21, 1965 (#66000879)	Litchfield 41°44′31″N 73°11′20″W / 41.7419°N 73.1888°W / 41.7419; -73.1888 (Tapping Reeve House and Law School)	Litchfield	First law school in the United States separate from a college or university, its influential graduates included Aaron Burr, Jr. and John C. Calhoun.
48	Frederic Remington House	More images	December 21, 1965 (#66000880)	Ridgefield 41°17′05″N 73°30′59″W / 41.2848°N 73.5165°W / 41.2848; -73.5165 (Frederic Remington House)	Fairfield	Home of painter and sculptor Frederic Remington, famous for his depictions of the American West.
49	John Rogers Studio	More images	December 21, 1965 (#66000881)	New Canaan 41°09′00″N 73°29′51″W / 41.1499°N 73.4975°W / 41.1499; -73.4975 (John Rogers Studio)	Fairfield	Studio of the popular nineteenth century sculptor John Rogers.
50	Samuel Wadsworth Russell House	More images	August 7, 2001 (#70000688)	Middletown 41°33′37″N 72°39′20″W / 41.5602°N 72.6556°W / 41.5602; -72.6556 (Samuel Wadsworth Russell House)	Middlesex	Greek Revival mansion, designed by Ithiel Town; now part of Wesleyan University.
51	Sabino (Passenger Steamboat)	More images	October 5, 1992 (#92001887)	Mystic 41°21′32″N 71°58′02″W / 41.3590°N 71.9673°W / 41.3590; -71.9673 (Sabino (Passenger Steamboat))	New London	One of only two surviving members of the American "mosquito fleet", small steamers that served the inland waters of the United States.
52	Stanley-Whitman House	More images	October 9, 1960 (#66000882)	Farmington 41°43′23″N 72°49′25″W / 41.7230°N 72.8236°W / 41.7230; -72.8236 (Stanley-Whitman House)	Hartford	Classic seventeenth century New England saltbox.
53	The Steward's House, Foreign Mission School		October 31, 2016 (#16000858)	Cornwall 41°50′38″N 73°19′51″W / 41.8439°N 73.3309°W / 41.8439; -73.3309 (The Steward's House, Foreign Mission School)	Litchfield	The first and last experiment in a domestically located "foreign" mission and represents educational and social politics concerning racial tolerance, Asian and Native American migration, and American identity in the early 19th century.[3]
54	Harriet Beecher Stowe House	More images	February 27, 2013 (#70000710)	Hartford 41°46′01″N 72°42′03″W / 41.767°N 72.7008°W / 41.767; -72.7008 (Harriet Beecher Stowe House)	Hartford	Home of 19th century abolitionist writer and reform advocate Harriet Beecher Stowe, author of Uncle Tom's Cabin.
55	Jonathan Sturges House (The Cottage)		April 19, 1994 (#84000247)	Fairfield 41°08′47″N 73°16′00″W / 41.1465°N 73.2668°W / 41.1465; -73.2668 (Jonathan Sturges House (The Cottage))	Fairfield	Early Gothic-revival cottage
56	Ida Tarbell House	More images	April 19, 1993 (#93001602)	Easton 41°17′12″N 73°19′35″W / 41.2868°N 73.3263°W / 41.2868; -73.3263 (Ida Tarbell House)	Fairfield	Home of the muckraking journalist and author Ida Tarbell.
57	John Trumbull Birthplace	More images	December 21, 1965 (#66000883)	Lebanon 41°38′03″N 72°12′56″W / 41.6343°N 72.2156°W / 41.6343; -72.2156 (John Trumbull Birthplace)	New London	Home of Connecticut Governor Jonathan Trumbull and birthplace of his son John Trumbull, the "painter of the Revolution"
58	Mark Twain Home	More images	December 29, 1962 (#66000884)	Hartford 41°46′03″N 72°42′05″W / 41.7675°N 72.7013°W / 41.7675; -72.7013 (Mark Twain Home)	Hartford	Home of author, lecturer, and satirist Mark Twain from 1874 to 1891.
59	Joseph Webb House	More images	January 20, 1961 (#66000885)	Wethersfield 41°42′43″N 72°39′10″W / 41.7120°N 72.6528°W / 41.7120; -72.6528 (Joseph Webb House)	Hartford	Site of the 1781 American Revolutionary War conference between General George Washington and French General Rochambeau.
60	Noah Webster Birthplace	More images	December 29, 1962 (#66000886)	West Hartford 41°44′50″N 72°44′45″W / 41.7473°N 72.7457°W / 41.7473; -72.7457 (Noah Webster Birthplace)	Hartford	Home of the American lexicographer Noah Webster.
61	Henry Whitfield House	More images	September 25, 1997 (#72001327)	Guilford 41°16′39″N 72°40′35″W / 41.2775°N 72.6765°W / 41.2775; -72.6765 (Henry Whitfield House)	New Haven	The oldest house in Connecticut, built in 1639
62	Austin F. Williams Carriagehouse and House		August 6, 1998 (#98001190)	Farmington 41°43′04″N 72°50′02″W / 41.7178°N 72.8339°W / 41.7178; -72.8339 (Austin F. Williams Carriagehouse and House)	Hartford	Temporary quarters for the Amistad Africans and a "station" on the Underground Railroad
63	William Williams House	More images	November 11, 1971 (#71001012)	Lebanon 41°38′03″N 72°12′46″W / 41.6342°N 72.2128°W / 41.6342; -72.2128 (William Williams House)	New London	Home of William Williams, a signer of the Declaration of Independence.
64	Oliver Wolcott House	More images	November 11, 1971 (#71001011)	Litchfield 41°44′36″N 73°11′16″W / 41.7433°N 73.1878°W / 41.7433; -73.1878 (Oliver Wolcott House)	Litchfield	Home of the soldier and politician Oliver Wolcott, a signer of the Declaration of Independence and Governor of Connecticut
65	Yale Bowl	More images	February 27, 1987 (#87000756)	New Haven 41°18′47″N 72°57′38″W / 41.3131°N 72.9605°W / 41.3131; -72.9605 (Yale Bowl)	New Haven	Bowl stadium, model for Rose Bowl and others. Home of the Bulldogs and The Game.

Former National Historic Landmarks

	Landmark name	Image	Date listed	Locality	County	Description
1	First Telephone Exchange		January 29, 1964	New Haven	New Haven	Location of the first commercial telephone exchange. Building was demolished in 1973 and replaced by a parking garage[4]