A renovation of a townhome in Tielt, Belgium, led to the discovery of a secret tunnel system under the historic structures.

The U.S. Army Corps of Engineers Detroit District, heeding an emergency order from President Donald Trump to expedite the ...

A homeowner was floored after detailing how he discovered an Indiana Jones-esque labyrinth of hidden chambers and tunnels ...

We discovered a hidden tunnel that leads directly beneath the city. What started as a curious opening quickly turned into a full-blown underground exploration. As we make our way through the passage, ...

Scientists have unveiled a 70-year plan to build a massive, 91km tunnel under the Swiss Alps to house the Future Circular Collider (FCC). The FCC, more than three times larger than the current Large ...

She discovered “a network of tunnels and rooms”. The woman found tunnels under house house. Photo: Reddit / @Visible_Sale4845 “The tunnels just keep going, maybe 5 rooms? Some rooms have ...

Scientists have unveiled a 70-year plan to build a massive, 91km tunnel under the Swiss Alps to house the Future Circular Collider (FCC). The FCC, more than three times larger than the current ...

"Building a tunnel under the Great Lakes to house an outdated and dangerous pipeline is risky. Expediting that process is reckless," said Beth Wallace, climate and energy director for the National ...