| ★ |  Part of Underground Railroad found in NYC museum closet | | — | — | |
| 16 |  We found a secret Narnia door! #abandoned #hiddendoor | Bros Of Decay @brosofdecay | — | Bélgica | 84 |
| 19 |  What Was Found Beneath the Eiffel Tower in WWII | History Theory @historytheorychannel | — | Reino Unido | 84 |
| 10 |  30 Hidden Underground Cities in America | | 882.9K | Eslovenia | 84 |
| 8 |  Hidden Door Discovered Beneath Brooklyn Bridge | Mysteries Unearthed with Danny Trejo | #shorts | | 120.0K | Estados Unidos | 85 |
| 14 |  Construction Crew Finds Hidden Chamber Beneath Solid Ground | MostAmazingTop10 @mostamazingtop10 | 30.8K | Canadá | 84 |
| 2 |  Part of Underground Railroad found in closet of Merchant House Museum | Eyewitness News ABC7NY @abc7ny | 21.7K | Estados Unidos | 89 |
| 9 |  Hidden Priest's Chapel & 18th Century Carriage Found! #shorts | Bros Of Decay @brosofdecay | 20.0K | Bélgica | 85 |
| 15 |  Hidden Vault Found Beneath Temple Floor Still Completely Sealed | MostAmazingTop10 @mostamazingtop10 | 9.7K | Canadá | 84 |
| 1 |  Underground Railroad safe house discovered in NYC | | 7.7K | Estados Unidos | 93 |
| 20 |  U.S. Steam Wheel Tank - in 1918 | Untold Archive @untoldarchive-i5k | 4.6K | Rumanía | 84 |
| 4 |  These Underground Cities Were Hidden for Many Decades — What Explorers Found Inside Is Insane | | 2.7K | Estados Unidos | 86 |
| 11 |  Beneath this South London Tube station lies a secret WWII shelter, 11 stories deep | Visit London @visitlondonofficial | 1.3K | Reino Unido | 84 |
| 17 |  The Unseen Architect: The Legacy of William Still | History Heroes @historyheroes12 | 268 | — | 84 |
| 12 |  A Historic Place With Zero Visitors #abandonedhistory #forgottenplaces #hiddenheritage | | 140 | Estados Unidos | 84 |
| 13 |  Uncharted Alleys The Hidden River Tunnels of a Living City | Urban explorations @romanezizli | 62 | — | 84 |
| 3 |  Urban Explorations New York Hidden Tunnels | Urban explorations @romanezizli | 25 | — | 87 |
| 18 |  The Secret History of the Civil Rights Movement in America | | 12 | Estados Unidos | 84 |
| 6 |  Secret Room on The Empire State Building #shorts | Brilliant News @brilliantnews | 11 | Estados Unidos | 85 |