A sprawling network of secret underground tunnels is being transformed into a major new London tourist attraction. Hidden 40m ...

In a twist worthy of a Renaissance mystery, Leonardo da Vinci's sketches have revealed hidden secrets beneath the Sforza ...

An underground tunnel network long rumored thanks to drawings by Leonardo da Vinci under Milan’s Sforza Castle are proven to ...

A labyrinth of tunnels beneath the heart of London is destined for a new lease of life as a tourist attraction with up to ...

Thirty metres (100 feet) below the UK capital's bustling streets, all that can be heard in the tunnels built to withstand a nuclear attack is the rumble of the London Underground's Circle Line ...

Denver’s weed church, zodiac predictions for the Year of the Snake, plus what promises to be London’s most ambitious – and ...

A secret tunnel discovered last week on the U.S.-Mexico border will be sealed by Mexican authorities, an army official in Ciudad Juarez said Saturday. The tunnel, discovered on Jan. 10 ...

An underground tunnel network long rumored thanks to drawings ... bringing to light unknown walkways and ideas for further studies on secret passages,” Francesca Biolo, researcher at Polytechnic ...

General Jose Lemus, commander of Ciudad Juarez's military garrison, said the tunnel "must have taken a long time" to build, ...

Just a few feet underground, researchers discovered evidence of the long-rumored tunnels. “The georadar has enriched the 3D model with data on known but inaccessible spaces, bringing to light unknown ...