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

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

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

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

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

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

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

A vast network of secret underground tunnels beneath central London, constructed during World War II, is set to be transformed into a major tourist attraction by 2028. The London Tunnels project ...

Hidden in the mountains of South Africa, the 149-year-old abandoned tunnel is the oldest tunnel on the continent.

A sprawling network of secret underground tunnels is being transformed into a major new London tourist attraction. Hidden 40m below the streets of the capital, the Kingsway Exchange Tunnels were ...