A sprawling network of tunnels lurks 90 metres under the streets of bustling city Chicago, and it's not just a fascinating ...

Authorities believe the tunnel was used to smuggle drugs into Spain. The tunnel was found during a police search of a ...

Researchers may have found the hidden tunnels beneath a castle in Milan that Leonardo da Vinci sketched in 1495.

A network of secret tunnels buried deep under London is set to be transformed into a £120 million tourist attraction. The ...

A series of underground passages have been found under Sforza Castle in Milan by experts at the city's Polytechnic University ...

The term “iceberg home” describes houses with elaborate lower levels like the Kansas City home of Chiefs player Travis Kelce.

Last April, Nasa scientist Chad Greene and his crew were flying over Greenland when their radar unexpectedly picked up ...

Former DEA Senior Special Agent Michael Brown told Fox News that "cover-ups" are seemingly normal buildings hiding their real ...

Now, scientists at Polytechnic University of Milan have revealed the hidden network of tunnels beneath the castle using a new method to digitally scan the castle structure using penetrating radars ...

The hidden passage, dug 12 meters below ground, was discovered during a dramatic raid on a warehouse in Ceuta’s industrial ...