| ★ |  The Channel Tunnel | The Train Tunnel Beneath the Sea (Believe It or Not! — Episode 134) | Bryan’s English Club @bryansenglishclub | 184 | Corea del Sur | |
| 6 |  We discovered a 600 year old tunnel system under this castle… 🏰 #history #tunnel | Bros Of Decay @brosofdecay | — | Bélgica | 85 |
| 7 |  Immersed Tube Tunnels: The Technology Connecting Continents Underwater | Top 10 Discoveries Official @top10discoveries.official | — | Estados Unidos | 85 |
| 15 |  Ancient Tunnel Found Leading Toward Ocean Floor | MostAmazingTop10 @mostamazingtop10 | — | Canadá | 84 |
| 2 |  How They Build Underwater Tunnels | | 2.9M | — | 87 |
| 3 |  Channel Tunnel | The Mind-blowing Engineering Behind It | Sabin Civil Engineering @sabincivil | 1.5M | India | 86 |
| 16 |  The Genius Design of North Korea's Secret Tunnels | | 169.0K | España | 84 |
| 5 |  Europe and Africa Will Soon Be Connected by a 25-Mile Tunnel | BRIGHT SIDE @brightsideofficial | 152.2K | — | 85 |
| 1 |  Inside the Forgtten Trial Channel Tunnel (1959) | Our History | | 54.9K | Reino Unido | 90 |
| 4 |  How London's tunnels were built underwater in the 1800s 🤯 | | 40.4K | Reino Unido | 86 |
| 10 |  The Tunnels Beneath Paris Explained | Povs Adventures @povsadventures | 14.3K | — | 84 |
| 9 |  The world's longest underground railway tunnel | | 10.7K | Reino Unido | 84 |
| 18 |  What They Found Inside the Forbidden WWI Tunnel | War Junk | British History @britishhistory-documentaries | 8.6K | — | 83 |
| 20 |  These Underground Cities Were Hidden for Many Decades — What Explorers Found Inside Is Insane | | 2.7K | Estados Unidos | 83 |
| 13 |  World record made in Europe: The world’s longest railway tunnel is being built under the Alps | | 2.5K | Reino Unido | 84 |
| 11 |  Playing Hide and Seek Under the Streets of the UK: I Found What I Wasn’t Supposed to Know | Europe Today - The Untold @europetodaytheuntold | 985 | Reino Unido | 84 |
| 19 |  Secrets of the World's Oldest Underground Railway 🚇 | An After Thought @anafterthought | 297 | Reino Unido | 83 |
| 8 |  London Underground Secrets - History, Upgrades and Hidden Stories Revealed | Everything History @everythinghistoryyt | 203 | — | 85 |
| 12 |  London Smelled SO BAD It Shut Down the Government 🤢 Believe It or Not! — Episode 150 | Bryan’s English Club @bryansenglishclub | 90 | Corea del Sur | 84 |
| 14 |  China’s New Undersea Tunnel Is So Extreme Americans Can’t Even Imagine | Tech Motiv @techmotiv-145 | 15 | Pakistán | 84 |