This article describesNational Historic Landmarks in the United States state ofConnecticut. 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-designatedWorld Heritage Sites in Connecticut. There are many additional historic sites in Connecticut that are federally recognized bylisting on the National Register of Historic Places, but only those NRHP-listed sites meeting particularly higher standards are further designated as 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″N72°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 toWesleyan University.
2	A. Everett Austin House	More images	April 19, 1994 (#94001189)	Hartford 41°46′51″N72°42′33″W / 41.7807°N 72.7092°W /41.7807; -72.7092 (A. Everett Austin House)	Hartford	Social hotspot and home of innovativeWadsworth Atheneum directorArthur Everett Austin Jr.
3	Henry Barnard House	More images	December 21, 1965 (#66000803)	Hartford 41°45′25″N72°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	December 11, 2023 (#100009807)	820 Main St. 41°10′32″N73°11′18″W / 41.175556°N 73.188333°W /41.175556; -73.188333 (Barnum Institute of Science and History)	Fairfield	Only surviving building associated with influential 19th-century entertainerP.T. Barnum.
5	Birdcraft Sanctuary	More images	April 19, 1993 (#82004371)	Fairfield 41°08′39″N73°15′31″W / 41.1443°N 73.2587°W /41.1443; -73.2587 (Birdcraft Sanctuary)	Fairfield	Oldest bird sanctuary in the U.S., whereMabel Osgood Wright originated "birdscaping".
6	Henry C. Bowen House (Roseland)	More images	October 5, 1992 (#77001414)	Woodstock 41°56′50″N71°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″N73°35′53″W / 41.0348°N 73.5980°W /41.0348; -73.5980 (Bush-Holley House)	Fairfield	Home ofCos Cob Art Colony, c.1890-1920.
8	Buttolph–Williams House	More images	November 24, 1968 (#68000048)	Wethersfield 41°42′37″N72°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″N71°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″N72°31′32″W / 41.764500°N 72.525500°W /41.764500; -72.525500 (Cheney Brothers Historic District)	Hartford	A nineteenth century silk mill and traditionalcompany town.
11	Russell Henry Chittenden House		May 15, 1975 (#75001944)	New Haven 41°18′48″N72°55′23″W / 41.3134°N 72.9231°W /41.3134; -72.9231 (Russell Henry Chittenden House)	New Haven	Home ofRussell Henry Chittenden, the "father of American biochemistry".
12	Coltsville Historic District	More images	November 13, 1966 (#66000802)	Hartford 41°45′13″N72°40′28″W / 41.7536°N 72.6745°W /41.7536; -72.6745 (Coltsville Historic District)	Hartford	Originally designated solely to encompassArmsmear, the home of arms makerSamuel Colt, this historic district was expanded in 1988 to include theColt 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″N72°55′11″W / 41.3288°N 72.9196°W /41.3288; -72.9196 (Connecticut Agricultural Experiment Station)	New Haven	Home of the first stateagricultural experiment station
14	Connecticut Hall, Yale University	More images	December 21, 1965 (#66000806)	New Haven 41°18′22″N72°55′46″W / 41.3062°N 72.9295°W /41.3062; -72.9295 (Connecticut Hall, Yale University)	New Haven	Oldest building atYale University
15	Connecticut State Capitol	More images	December 30, 1970 (#70000834)	Hartford 41°45′44″N72°40′58″W / 41.7622°N 72.6828°W /41.7622; -72.6828 (Connecticut State Capitol)	Hartford	Designed byRichard 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″N71°58′19″W / 41.6961°N 71.9719°W /41.6961; -71.9719 (Prudence Crandall House)	Windham	Home of the abolitionist and educatorPrudence Crandall
17	James Dwight Dana House	More images	January 12, 1965 (#66000874)	New Haven 41°18′48″N72°55′25″W / 41.3132°N 72.9237°W /41.3132; -72.9237 (James Dwight Dana House)	New Haven	Home of Yale geologistJames Dwight Dana, designed byHenry Austin.
18	Silas Deane House	More images	November 28, 1972 (#70000835)	Wethersfield 41°42′42″N72°39′10″W / 41.7116°N 72.6529°W /41.7116; -72.6529 (Silas Deane House)	Hartford	Home ofSilas Deane, member of theContinental Congress and America's first diplomat
19	Oliver Ellsworth Homestead	More images	December 20, 1989 (#70000707)	Windsor 41°52′43″N72°37′29″W / 41.8787°N 72.6247°W /41.8787; -72.6247 (Oliver Ellsworth Homestead)	Hartford	Home ofOliver Ellsworth, the thirdChief Justice of the United States.
20	Emma C. Berry		October 12, 1994 (#94001649)	Mystic 41°21′35″N71°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″N72°49′48″W / 41.7214°N 72.8300°W /41.7214; -72.8300 (First Church of Christ)	Hartford	Church of theLa Amistad freed slaves.
22	First Presbyterian Church	More images	January 13, 2021 (#100006271)	Stamford 41°03′47″N73°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″N72°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 centurysachemUncas.
24	Florence Griswold House and Museum	More images	April 19, 1993 (#93001604)	Old Lyme 41°19′31″N72°19′35″W / 41.3254°N 72.3265°W /41.3254; -72.3265 (Florence Griswold House and Museum)	New London	Boarding house frequented byAmerican impressionist artists such asHenry Ward Ranger,Childe Hassam, andWillard Metcalf.
25	Grove Street Cemetery	More images	February 16, 2000 (#97000830)	New Haven 41°18′49″N72°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 includingRoger Sherman,Noah Webster andEli Whitney.
26	Hill–Stead	More images	July 17, 1991 (#91002056)	Farmington 41°43′11″N72°49′29″W / 41.7197°N 72.8248°W /41.7197; -72.8248 (Hill–Stead)	Hartford	Colonial revival house and art museum located in theFarmington Historic District
27	Samuel Huntington Birthplace	More images	November 11, 1971 (#71001009)	Scotland 41°41′55″N72°05′08″W / 41.6986°N 72.0856°W /41.6986; -72.0856 (Samuel Huntington Birthplace)	Windham	Boyhoodsaltbox home of the American statesmanSamuel Huntington, a signer of theDeclaration of Independence,Governor of Connecticut and first presiding officer of theCongress of the Confederation
28	Philip Johnson Glass House	More images	February 18, 1997 (#97000341)	New Canaan 41°08′33″N73°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 architectPhilip Johnson.
29	Kimberly Mansion		May 30, 1974 (#74002178)	Glastonbury 41°41′21″N72°36′22″W / 41.6893°N 72.6060°W /41.6893; -72.6060 (Kimberly Mansion)	Hartford	Home ofAbby andJulia Smith, suffragists who successfully fought the town of Glastonbury on the issue oftaxation without representation.
30	L. A. Dunton (schooner)	More images	November 4, 1993 (#93001612)	Mystic 41°21′23″N71°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″N73°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″N73°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″N72°55′24″W / 41.3218°N 72.9233°W /41.3218; -72.9233 (Othniel C. Marsh House)	New Haven	Home of Yale paleontologistOthniel Marsh; now part of theYale School of Forestry (Marsh Hall).
34	Mashantucket Pequot Reservation Archeological District		April 12, 1993 (#86001323)	Ledyard 41°27′32″N71°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 toPequot history.
35	Stephen Tyng Mather Home	More images	November 27, 1963 (#66000877)	Darien 41°06′45″N73°28′27″W / 41.1126°N 73.4743°W /41.1126; -73.4743 (Stephen Tyng Mather Home)	Fairfield	Home of conservationistStephen Tyng Mather, who was instrumental in the formation of theNational Park Service and served as its first director.
36	Lafayette B. Mendel House		January 7, 1976 (#76002138)	New Haven 41°18′40″N72°55′06″W / 41.3112°N 72.9182°W /41.3112; -72.9182 (Lafayette B. Mendel House)	New Haven	Home of Yale biochemistLafayette Mendel; designed by Henry Austin
37	James Merrill House	More images	October 31, 2016 (#13000618)	Stonington 41°20′01″N71°54′24″W / 41.333697°N 71.906633°W /41.333697; -71.906633 (James Merrill House)	New London	Home ofJames 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″N72°05′45″W / 41.3322°N 72.0959°W /41.3322; -72.0959 (Monte Cristo Cottage)	New London	Home of theNobel Prize-winning playwrightEugene O'Neill.
39	Edward W. Morley House		May 15, 1975 (#75002057)	West Hartford 41°45′27″N72°45′12″W / 41.7575°N 72.7532°W /41.7575; -72.7532 (Edward W. Morley House)	Hartford	Home of physicistEdward W. Morley, known for theMichelson–Morley experiment and for his work on the atomic weights of hydrogen and oxygen.
40	USSNAUTILUS (nuclear submarine)	More images	May 20, 1982 (#79002653)	Groton 41°23′13″N72°05′17″W / 41.387°N 72.088°W /41.387; -72.088 (USSNAUTILUS (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″N72°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″N72°53′07″W / 41.6603°N 72.8852°W /41.6603; -72.8852 (Charles H. Norton House)	Hartford	Home ofCharles H. Norton, the inventor of precision grinding equipment.
43	Old New-Gate Prison	More images	November 28, 1972 (#70000839)	East Granby 41°57′36″N72°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 theAmerican Revolutionary War
44	Old State House	More images	December 18, 1960 (#66000878)	Hartford 41°45′57″N72°40′24″W / 41.7658°N 72.6733°W /41.7658; -72.6733 (Old State House)	Hartford	Federal style building designed byCharles Bulfinch and completed in 1796.
45	Capt. Nathaniel B. Palmer House	More images	June 19, 1996 (#96000971)	Stonington 41°20′34″N71°54′23″W / 41.3427°N 71.9064°W /41.3427; -71.9064 (Capt. Nathaniel B. Palmer House)	New London	Home of the pioneeringAntarctic explorer and seal hunterNathaniel Palmer.
46	Portland Brownstone Quarries		May 16, 2000 (#00000703)	Portland 41°34′32″N72°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″N73°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 includedAaron Burr, Jr. andJohn C. Calhoun.
48	Frederic Remington House	More images	December 21, 1965 (#66000880)	Ridgefield 41°17′05″N73°30′59″W / 41.2848°N 73.5165°W /41.2848; -73.5165 (Frederic Remington House)	Fairfield	Home of painter and sculptorFrederic Remington, famous for his depictions of theAmerican West.
49	John Rogers Studio	More images	December 21, 1965 (#66000881)	New Canaan 41°09′00″N73°29′51″W / 41.1499°N 73.4975°W /41.1499; -73.4975 (John Rogers Studio)	Fairfield	Studio of the popular nineteenth century sculptorJohn Rogers.
50	Samuel Wadsworth Russell House	More images	August 7, 2001 (#70000688)	Middletown 41°33′37″N72°39′20″W / 41.5602°N 72.6556°W /41.5602; -72.6556 (Samuel Wadsworth Russell House)	Middlesex	Greek Revival mansion, designed byIthiel Town; now part ofWesleyan University.
51	Sabino (Passenger Steamboat)	More images	October 5, 1992 (#92001887)	Mystic 41°21′32″N71°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″N72°49′25″W / 41.7230°N 72.8236°W /41.7230; -72.8236 (Stanley-Whitman House)	Hartford	Classic seventeenth century New Englandsaltbox.
53	The Steward's House, Foreign Mission School		October 31, 2016 (#16000858)	Cornwall 41°50′38″N73°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″N72°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 advocateHarriet Beecher Stowe, author ofUncle Tom's Cabin.
55	Jonathan Sturges House (The Cottage)		April 19, 1994 (#84000247)	Fairfield 41°08′47″N73°16′00″W / 41.1465°N 73.2668°W /41.1465; -73.2668 (Jonathan Sturges House (The Cottage))	Fairfield	EarlyGothic-revival cottage
56	Ida Tarbell House	More images	April 19, 1993 (#93001602)	Easton 41°17′12″N73°19′35″W / 41.2868°N 73.3263°W /41.2868; -73.3263 (Ida Tarbell House)	Fairfield	Home of themuckraking journalist and authorIda Tarbell.
57	John Trumbull Birthplace	More images	December 21, 1965 (#66000883)	Lebanon 41°38′03″N72°12′56″W / 41.6343°N 72.2156°W /41.6343; -72.2156 (John Trumbull Birthplace)	New London	Home of Connecticut GovernorJonathan Trumbull and birthplace of his sonJohn Trumbull, the "painter of the Revolution"
58	Mark Twain Home	More images	December 29, 1962 (#66000884)	Hartford 41°46′03″N72°42′05″W / 41.7675°N 72.7013°W /41.7675; -72.7013 (Mark Twain Home)	Hartford	Home of author, lecturer, and satiristMark Twain from 1874 to 1891.
59	Joseph Webb House	More images	January 20, 1961 (#66000885)	Wethersfield 41°42′43″N72°39′10″W / 41.7120°N 72.6528°W /41.7120; -72.6528 (Joseph Webb House)	Hartford	Site of the 1781American Revolutionary War conference between GeneralGeorge Washington and French GeneralRochambeau.
60	Noah Webster Birthplace	More images	December 29, 1962 (#66000886)	West Hartford 41°44′50″N72°44′45″W / 41.7473°N 72.7457°W /41.7473; -72.7457 (Noah Webster Birthplace)	Hartford	Home of the American lexicographerNoah Webster.
61	Henry Whitfield House	More images	September 25, 1997 (#72001327)	Guilford 41°16′39″N72°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″N72°50′02″W / 41.7178°N 72.8339°W /41.7178; -72.8339 (Austin F. Williams Carriagehouse and House)	Hartford	Temporary quarters for theAmistad Africans and a "station" on theUnderground Railroad
63	William Williams House	More images	November 11, 1971 (#71001012)	Lebanon 41°38′03″N72°12′46″W / 41.6342°N 72.2128°W /41.6342; -72.2128 (William Williams House)	New London	Home ofWilliam Williams, a signer of theDeclaration of Independence.
64	Oliver Wolcott House	More images	November 11, 1971 (#71001011)	Litchfield 41°44′36″N73°11′16″W / 41.7433°N 73.1878°W /41.7433; -73.1878 (Oliver Wolcott House)	Litchfield	Home of the soldier and politicianOliver Wolcott, a signer of theDeclaration of Independence andGovernor of Connecticut
65	Yale Bowl	More images	February 27, 1987 (#87000756)	New Haven 41°18′47″N72°57′38″W / 41.3131°N 72.9605°W /41.3131; -72.9605 (Yale Bowl)	New Haven	Bowl stadium, model forRose Bowl and others. Home of theBulldogs andThe Game.

	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]

• National Register of Historic Places listings in Connecticut
• List of U.S. National Historic Landmarks by state
• List of National Natural Landmarks in Connecticut

• "National Historic Landmarks Survey: List of National Historic Landmarks by State--Connecticut (59)"(PDF). National Park Service. Archived fromthe original(PDF) on July 23, 2004. RetrievedOctober 3, 2007.
• National Historic Landmarks Program, at National Park Service
• National Park Service listings of National Historic Landmarks

• National Historic Landmarks in Connecticut
• Lists of National Historic Landmarks by state
• Lists of National Register of Historic Places in Connecticut

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