Behind a blue door in a narrow London passage lies a little-known network of tunnels deep underground, once home to British ...

Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access ...

Archaeologists have discovered an underground tunnel beneath Rua Augusta in Lisbon, buried during the earthquake of 1755.

An underground tunnel network long rumored thanks to drawings by Leonardo da Vinci under Milan’s Sforza Castle are proven to exist. Ground-penetrating radar and laser scanning revealed that the ...

Cross-border services between Italy and France via the Fréjus tunnel in the French Alps are set to resume on March 31.

From a passageway made by giant sloths to a slinky tunnel bridge and an 'entrance to hell' - there are some extraordinary ...

Downtown Oklahoma City was headed underground in 1973. The million dollar network of tunnels that would link more than a dozen buildings and connect with existing tunnels would be quite the ...

A tunnel network with mysterious origins that locals refuse to speak about is nestled in a European city. The Fishbones is an underground tunnel network which runs under the Croix-Rousse hill in ...

A major road tunnel between France and Italy is set to reopen this summer after ten years of work. The Tende tunnel, situated in the mountainous north of the Alpes-Maritimes department, has been ...

An underground tunnel network long rumored thanks to drawings by Leonardo da Vinci under Milan’s Sforza Castle are proven to exist. Ground-penetrating radar and laser scanning revealed that the ...