| ★ |  30 Hidden Underground Cities in America | | 882.9K | Eslovenia | |
| 1 |  24 Hidden Underground Cities in America | Part 2 | | 471.0K | Eslovenia | 93 |
| 5 |  15 Things You Never Knew Were UNDERGROUND | | 366.9K | Estados Unidos | 88 |
| 3 |  27 HIDDEN Underground Cities You Won't Believe Exist | | 342.1K | Eslovenia | 91 |
| 16 |  The Ancient Kingdoms Literally Below Modern Cities | Sideprojects @sideprojects | 161.4K | Chequia | 87 |
| 14 |  The Insane City Located Beneath Beijing... | Sideprojects @sideprojects | 157.2K | Chequia | 87 |
| 8 |  23 Underground Structures No One Knows About | | 86.7K | Eslovenia | 88 |
| 6 |  10 Hidden Underground Worlds - you didn't know existed | | 51.2K | Estados Unidos | 88 |
| 15 |  These American Towns Feel Cut Off From the World | Beyond the Map @beyondthemap-c8w | 17.3K | Estados Unidos | 87 |
| 2 |  30 Hidden Underground Cities in Europe | | 9.3K | Eslovenia | 92 |
| 12 |  HIDDEN in AMERICA!! You Won’t Believe These Pennsylvania Towns That Were Left Behind | | 7.4K | Estados Unidos | 87 |
| 4 |  These Underground Cities Were Hidden for Many Decades — What Explorers Found Inside Is Insane | | 2.7K | Estados Unidos | 90 |
| 10 |  Uncovering Chicago Fascinating Tunnel Systems #chicago | | 1.9K | — | 88 |
| 9 |  UNSEEN AMERICA - The Most Alien Places in America | Family Travel Itineraries @familytravelitineraries | 838 | Estados Unidos | 88 |
| 11 |  This Hidden Tunnel System Under SLC Will Shock You #exploration #urbantunnels | Allred Travels @allredtravel | 515 | Estados Unidos | 87 |
| 17 |  Is The Seattle Underground Tour Worth It? - United States Revealed | United States Revealed @unitedstatesrevealed | 33 | Estados Unidos | 87 |
| 7 |  Urban Explorations New York Hidden Tunnels | Urban explorations @romanezizli | 25 | — | 88 |
| 18 |  Secret Room on The Empire State Building #shorts | Brilliant News @brilliantnews | 11 | Estados Unidos | 87 |
| 20 |  The Underground World of Urban Exploration: Discovering hidden spaces. | The answer to your Why? @theanswertoyourwhy-hc2gr | 4 | Filipinas | 87 |
| 13 |  The Lost City Beneath the Grand Canyon: America’s Hidden Civilization 🏜️✨ #globalexplorer | | 3 | Estados Unidos | 87 |