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

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

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

A former American military base, said to be used for 'scientific research' but was home to a secret nuclear project, remains ...

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 ...

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

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 ...

Now, new information on the mysterious base has come to light. Camp Century was built in 1959 and was operational for seven ...

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

Move over cave explorations. Now, it is time to explore deep and dark tunnels for a thrilling experience. As you walk through these old passageways, it is impossible not to feel that these tunnels ...

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