# List of National Historic Landmarks in Connecticut

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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

| | Landmark name | Image | Date designated | Location | County | Description |
| 1 | Richard Alsop IV House | 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 | 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 | 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 | Barnum Institute of Science and History More images | December 11, 2023 (#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 | Only surviving building associated with influential 19th-century entertainer P.T. Barnum. |
| 5 | Birdcraft Sanctuary | 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) | 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 | 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 | 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) | 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 | 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 | 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 | 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 | 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 | 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 | 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 | 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 | 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 | 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 | 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 | 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 | 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 | 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 | 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 | 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 | 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 | 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 | 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 | 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 | 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) | 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 | 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 | 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 | 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 | 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 | 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 | 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 | 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. |
| 38 | Monte Cristo Cottage(Eugene O'Neill House) | Monte Cristo Cottage 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 | 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) | 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 | 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 | 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 | 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 | 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 | 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 | 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 | 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 | 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 | 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 | 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) | 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 | 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 | 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. |
| 54 | Harriet Beecher Stowe House | 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) | 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 | 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 | 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 | 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 | 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 | 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 | 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 | 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 | 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 | 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 | 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 |