The proposal isn't new, but the idea has long been considered impossible due to the length and amount of money needed to ...

(CNN) — On the shores of the Baltic Sea, in the south of Denmark, a vast engineering marvel is taking shape — piece by giant ...

Claim: An underground tunnel leading to Kashi was discovered below a temple ... the tank and later transitions to an underground waterfall. A comparison with Google Maps images confirmed that the ...

Archaeologists discovered an ancient underground city beneath Abarkuh ... when the ancient people of Abarkuh dug water transfer tunnels, known as a qanat, they added stairs connecting the houses ...

A ground-breaking discovery has been made in an ancient Egyptian city. The structure was found underneath the city of Taposiris Magna, baffling archaeologists that uncovered a piece of history.

Does Gloucester have a vast underground network beneath itself dating back centuries ... “I remember playing in the tunnels and the air raid shelters as a child," she said. "They were not all tunnels ...

Sneak peek: Take a look inside the high-speed train from Southern California to Las Vegas Hearing set on underground shuttle from Rancho Cucamonga to Ontario airport Ontario airport tunnel project ...

Bookmark stories for easy access on any device or the Swarajya app. In a significant milestone for the Delhi Metro Rail Corporation (DMRC), a Tunnel Boring Machine (TBM) has successfully completed ...

The Delhi Metro Rail Corporation (DMRC) completed an underground tunnel at Vasant Kunj station on the Tughlakabad-Aerocity corridor, marking a key milestone in its Phase 4 expansion. This 26km ...

From caves and tunnels to bunkers, mines and crypts, here's our pick of the 10 best underground places to explore. The Lochnell Mine Experience, Wanlockhead Mining was once the lifeblood of ...

Researchers have discovered hidden tunnels beneath Milan’s Sforza Castle, which may have been used for military defense, possibly connected to Leonardo da Vinci’s designs. The underground ...

The Brennner Base tunnel is an £8 million mega-project involving the construction of a 34-mile tunnel under one of the largest mountain ranges - the Alps. The network will connect Fortezza ...