The contested record

779 dossiers carry2,750 disagreements between sources — what a place is, whether it still stands, whether the door is open. The archive keeps both versions rather than picking a winner.USS North Carolina holds the record: 12 open disputes.

Can you even visit?

sources disagree on whether the door is open

1816 Farmington Quaker MeetinghouseNew YorkPublic Access
On file — RESTRICTED
Also reported — PUBLIC
Abigail and Elizabeth Goodwin HouseNew JerseyPublic Access
On file — RESTRICTED
Also reported — PUBLIC
Abyssinian Meeting HouseMainePublic Access
On file — RESTRICTED
Also reported — PUBLIC
Anna Bixby's CaveIllinoisPublic Access
On file — RESTRICTED
Also reported — PUBLIC
Appoquinimink Friends Meeting House and CemeteryDelawarePublic Access
On file — RESTRICTED
Also reported — PUBLIC
Area 51 (Groom Lake)NevadaPublic Access
On file — RESTRICTED
Also reported — PUBLIC
Asa WingNew YorkPublic Access
On file — RESTRICTED
Also reported — PUBLIC
Avon Haunted BridgeIndianaPublic Access
On file — RESTRICTED
Also reported — PUBLIC
Basil Dorsey and Thomas H. Jones HouseMassachusettsPublic Access
On file — RESTRICTED
Also reported — PUBLIC
Bethel African Methodist Episcopal ChurchIndianaPublic Access
On file — RESTRICTED
Also reported — PUBLIC
Beverly Hills Supper Club siteKentuckyPublic Access
On file — PRIVATE
Also reported — PUBLIC
Black Horse Tavern, Old Mountain RoadVirginiaPublic Access
On file — PRIVATE
Also reported — PUBLIC
Blanche K. Bruce HouseWashington, D.C.Public Access
On file — RESTRICTED
Also reported — PUBLIC
Buckout-Jones BuildingNew YorkPublic Access
On file — RESTRICTED
Also reported — PUBLIC
Camp TulelakeCaliforniaPublic Access
On file — RESTRICTED
Also reported — PUBLIC

What is it?

the sources cannot agree on the noun

17 Hundred 90 InnGeorgiaPlace Type
On file — INN
Also reported — HISTORIC_SITE
1859 Jail MuseumMissouriPlace Type
On file — JAIL
Also reported — SITE
Alcatraz IslandCaliforniaPlace Type
On file — FORMER_PRISON
Also reported — PRISON
Andersonville PrisonGeorgiaPlace Type
On file — PRISON
Also reported — INCARCERATION_SITE
Angel Island Immigration StationCaliforniaPlace Type
On file — DETENTION_CENTER
Also reported — HISTORIC_SITE
Appoquinimink Friends Meeting House and CemeteryDelawarePlace Type
On file — HISTORIC_SITE
Also reported — CEMETERY
Archer Alexander Burial Site at St Peter’s Cemetery in St. Louis, MissouriMissouriPlace Type
On file — HISTORIC_SITE
Also reported — CEMETERY
Aspen Grove CemeteryIowaPlace Type
On file — HISTORIC_SITE
Also reported — CEMETERY
AuburnMississippiPlace Type
On file — MANSION
Also reported — HOUSE
Avon Haunted BridgeIndianaPlace Type
On file — RAILROAD_BRIDGE
Also reported — SITE
Bachelor’s Grove CemeteryIllinoisPlace Type
On file — CEMETERY
Also reported — SITE
Barbara Ann Kagey Mayhew Bradway Burial SiteNebraskaPlace Type
On file — HISTORIC_SITE
Also reported — CEMETERY
Batsto VillageNew JerseyPlace Type
On file — GHOST_TOWN
Also reported — HISTORIC_VILLAGE
Beverly Hills Supper Club siteKentuckyPlace Type
On file — DISASTER_SITE
Also reported — SITE
Blanche K. Bruce Burial SiteWashington, D.C.Place Type
On file — HISTORIC_SITE
Also reported — CEMETERY

Standing or gone?

recorded as active by one source, historic by another

1859 Jail MuseumMissouriCurrent Status
On file — HISTORIC_SITE
Also reported — ACTIVE
Amache National Historic SiteColoradoCurrent Status
On file — HISTORIC_SITE
Also reported — ACTIVE
Annaberg Sugar PlantationU.S. Virgin IslandsCurrent Status
On file — HISTORIC_SITE
Also reported — ACTIVE
As Nieves Latte Stone QuarryNorthern Mariana IslandsCurrent Status
On file — HISTORIC_SITE
Also reported — ACTIVE
AuburnMississippiCurrent Status
On file — HISTORIC_SITE
Also reported — ACTIVE
BannackMontanaCurrent Status
On file — HISTORIC_SITE
Also reported — ACTIVE
Banzai CliffNorthern Mariana IslandsCurrent Status
On file — HISTORIC_SITE
Also reported — ACTIVE
Bear River Massacre SiteIdahoCurrent Status
On file — HISTORIC_SITE
Also reported — ACTIVE
BelmontNevadaCurrent Status
On file — HISTORIC_SITE
Also reported — ACTIVE
Beverly Hills Supper Club siteKentuckyCurrent Status
On file — DEMOLISHED
Also reported — ACTIVE
Blennerhassett IslandWest VirginiaCurrent Status
On file — HISTORIC_SITE
Also reported — ACTIVE
Blue Heron Mining CommunityKentuckyCurrent Status
On file — HISTORIC_SITE
Also reported — ACTIVE
Bohemia City — Musick Mine CampOregonCurrent Status
On file — ABANDONED
Also reported — ACTIVE
Camp TulelakeCaliforniaCurrent Status
On file — HISTORIC_SITE
Also reported — ACTIVE
Chestnut Hill CemeteryRhode IslandCurrent Status
On file — HISTORIC_SITE
Also reported — ACTIVE

Whose register is it on?

competing claims of official recognition

1816 Farmington Quaker MeetinghouseNew YorkHistoric Designation
On file — National Underground Railroad Network to Freedom listing
Also reported — NPS Network to Freedom
A. P. Dutton WarehouseWisconsinHistoric Designation
On file — National Underground Railroad Network to Freedom listing
Also reported — NPS Network to Freedom
Abigail and Elizabeth Goodwin HouseNew JerseyHistoric Designation
On file — National Underground Railroad Network to Freedom listing
Also reported — NPS Network to Freedom
Abyssinian Meeting HouseMaineHistoric Designation
On file — National Underground Railroad Network to Freedom listing
Also reported — NPS Network to Freedom
Adam Crosswhite MarkerMichiganHistoric Designation
On file — National Underground Railroad Network to Freedom listing
Also reported — NPS Network to Freedom
African American Civil War MemorialWashington, D.C.Historic Designation
On file — National Underground Railroad Network to Freedom listing
Also reported — NPS Network to Freedom
African Meeting HouseMassachusettsHistoric Designation
On file — National Underground Railroad Network to Freedom listing
Also reported — NPS Network to Freedom
African Methodist Society (Emanuel AME)VirginiaHistoric Designation
On file — National Underground Railroad Network to Freedom listing
Also reported — NPS Network to Freedom
Allegheny Portage Railroad National Historic SitePennsylvaniaHistoric Designation
On file — National Underground Railroad Network to Freedom listing
Also reported — NPS Network to Freedom
Amtrak Railroad CorridorPennsylvaniaHistoric Designation
On file — National Underground Railroad Network to Freedom listing
Also reported — NPS Network to Freedom
Angola Maroon CommunityFloridaHistoric Designation
On file — National Underground Railroad Network to Freedom listing
Also reported — NPS Network to Freedom
Anthony D. Allen SiteHawaiiHistoric Designation
On file — National Underground Railroad Network to Freedom listing
Also reported — NPS Network to Freedom
Appomattox PlantationVirginiaHistoric Designation
On file — National Underground Railroad Network to Freedom listing
Also reported — NPS Network to Freedom
Appoquinimink Friends Meeting House and CemeteryDelawareHistoric Designation
On file — National Underground Railroad Network to Freedom listing
Also reported — NPS Network to Freedom
Aquia LandingVirginiaHistoric Designation
On file — National Underground Railroad Network to Freedom listing
Also reported — NPS Network to Freedom

When was it built?

the cornerstone itself is contested

Castillo San CristóbalPuerto RicoYear Built
On file — 1634
Also reported — 1783
Farrar SchoolhouseIowaYear Built
On file — 1921
Also reported — 1922
LaLaurie MansionLouisianaYear Built
On file — 1838
Also reported — 1836
Shanley HotelNew YorkYear Built
On file — 1895
Also reported — 1845
Waverly Hills SanatoriumKentuckyYear Built
On file — 1926
Also reported — 1910

Why disagreement stays on the page

Most directories silently pick a winner. This archive was built by merging independent sources — government registers, local histories, field reports — and they do not always agree. A site can be a working inn to one registry and a museum piece to another; open to the public in one record and posted private in the next.

The disagreement is itself information. A Public Access dispute means "check before you go" is not boilerplate — it is the state of the record.