| ★ |  Refugio 307 en Poble Sec Barcelona | entrespacios @entrespacios | — | España | |
| 3 |  Kentucky Holds the Longest Cave Network In The WORLD | Underground Marvels | Science Channel | Science Channel @sciencechannel | — | — | 91 |
| 4 |  ¿SABÍAS QUE BAJO SOLOTVYNO EXISTE UN MUNDO SUBTERRÁNEO DE SAL, LAGOS Y CRISTALES? 🧂🌍✨ #curiosidades | Academia Metanoia @academiametanoia | — | España | 91 |
| 13 |  The Largest Air Raid Shelter in Britain! | Underground Marvels | Science Channel | Science Channel @sciencechannel | — | — | 89 |
| 5 |  Tormentas perfectas | | 24.1K | Ecuador | 91 |
| 16 |  En las entrañas de la Vía Verde del Irati | | 2.2K | España | 88 |
| 15 |  El observatorio que adelantó la ciencia 500 años😉 | Los Viajes de Wisky @viajaporelmundo-lo7fv | 1.5K | España | 88 |
| 6 |  A trail SO beautiful, tears were shed 😩🥹👇 ➡️ Send this to someone you want to hike to this | The Traveling Dans @thetravelingdans | 1.2K | Estados Unidos | 90 |
| 8 |  ASÍ SE MIRA EL TUNEL 🙄 #delranchitozac #zacatecas #mexico | DEL RANCHITO ZACATECAS @delranchitozacatecas | 1.0K | — | 89 |
| 12 |  El Tunel De Noche 😱 #delranchitozac #zacatecas ##mexico | DEL RANCHITO ZACATECAS @delranchitozacatecas | 811 | — | 89 |
| 11 |  Scopri Napoli a piedi in 2 giorni: Itinerari Segreti e Delizie Culinarie.Terza parte. #napoli #italy | DestinazioniVIP @destinazionivip | 179 | Italia | 89 |
| 19 |  Incredible Stalactite formations in the famous Luray Caverns in Virginia, 2 hours from DC #travel | AG | Adventure Travel & Nature @findingnewness | 51 | — | 88 |
| 7 |  Did you know about this SECRET tunnel in Washington State? 😯 | The Victorian Historians @thevictorianhistorians | 49 | Estados Unidos | 90 |
| 20 |  Túneles naturales, Cañón del pato Perú | Jose Luis Restrepo @joseluisrestrepo8737 | 40 | — | 88 |
| 18 |  Freedly Quarry - 8K Urban Exploration | Underground Looking Up @undergroundlookingup | 20 | Estados Unidos | 88 |
| 17 |  France The Catacombs Where Millions Are Buried Underground | Viaggio Nel Mondo @viaggionelmondoo | 9 | Italia | 88 |
| 10 |  Prats de Molló i la Presta | Joan Rovira @joanvallmitjana | 3 | España | 89 |
| 2 |  Cicloturismo Málaga Cádiz 12. Tunel cerca de Olvera. Me persigue una orda de zombis. | A vivir que son dos días @avivirquesondosdias3483 | 2 | — | 92 |
| 9 |  PRESICCE I SUONI FRANTOI SOTTERRANEI | Eventi Salento @eventisalentoofficial | 1 | Italia | 89 |
| 14 |  2. Juni 2024 | | 0 | — | 89 |