túneis subterrâneos

Interesting facts

U.S. City Spent Millions Building Subway Tunnels and Stations, But No Trains Have Run There

Romário Pereira de Carvalho 01/07/2026 at 15:20

Interesting facts

Couple spends 20 years digging a hillside in California to escape heat, cold, and fires, creates a maze of underground houses with tunnels, domes, and illuminated patios, and transforms buried dwelling into an artisanal ecovillage.

Ana Alice 18/06/2026 at 22:20

Interesting facts

Indianapolis “swallows” up to 250 million gallons of sewage and rain: underground tunnels capture overflows and take everything to treatment.

Alisson Ficher 05/06/2026 at 23:45

Science and Technology

Scientists pour 10 tons of cement into an abandoned anthill in Brazil and reveal an “underground city” with tunnels, chambers, and ventilation built by millions of ants.

Ana Alice 11/05/2026 at 23:56

Interesting facts

With 46,000 Hand-Dug Underground Water Tunnels Built Over 3,000 Years, Spanning Up to 350,000 Km Driven Solely by Gravity, Iran Made the Desert Bloom Until Deep Wells and Modern Dams Accelerated a Devastating Water Crisis

Maria Heloisa Barbosa Borges 12/02/2026 at 19:03

Construction

To Build The Largest Underground Metro In The Middle East, Saudi Arabia Dug More Than 176 Km Of Tunnels, Bored Through Rock And Sand With Shielded TBMs, Opened Stations Up To 40 Meters Deep, And Redesigned Entire Foundations Under The Capital

Débora Araújo 14/01/2026 at 18:49

Interesting facts

Discovery In Egypt May Change World History

Alisson Ficher 29/10/2025 at 18:46