Leonardo da Vinci, Sforza Castle and Secret passage

Archaeologists Followed a Sketch by Leonardo da Vinci. It Led to Secret Tunnels Under an Ancient Castle.
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 historic passages made famous by a Leonardo da Vinci drawing is just one of multiple tunnel sections.
Archaeologists Blown Away After Finding Secret Tunnels That Da Vinci Had Drawn Over 500 Years Ago
Archaeologists Blown Away After Finding Secret Tunnels That Da Vinci Had Drawn Over 500 Years Ago Researchers from the Polytechnic Institute of Milan visited the site of Italy’s famed Sforza Castle as part of a doctoral thesis and conducted a technological study.
Secret Passageways Recorded in Leonardo da Vinci’s Sketches Discovered Beneath a Medieval Castle in Milan
Using ground-penetrating radar and laser scanners, researchers identified subterranean structures just a few feet below the ground. The pathways may connect Sforza Castle to a nearby basilica
Da Vinci was right: Secret tunnels found in Italian castle
Italy's Sforza Castle includes a underground passage that linked the Duke of Milan to his wife’s tomb.
Radar confirms Leonardo da Vinci’s sketches of tunnels beneath 15th-century castle
As per the Politecnico di Milano, the investigation has “revealed the presence of numerous underground passages under the Sforza Castle.”
London's secret tunnels to open as new tourist attraction with the UK's deepest bar
A sprawling network of secret underground tunnels is being transformed into a major new London tourist attraction. Hidden 40m ...
CBS News11d
Secret tunnel found on U.S.-Mexico border to be sealed off
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 ...
AFP on MSN7h
London's tunnels echo of past espionage
LONDON: Once home to British spies and a secret long-distance telephone exchange, a little-known network of underground ...
London's top secret WW2 tunnels could be turned into mega James Bond tourist attraction
A labyrinth of tunnels beneath the heart of London is destined for a new lease of life as a tourist attraction with up to ...
Daily Mail26d
Secret border tunnel is found by drones in terrifying indicator of stealth super gangs sneaking into the US
Another secret cartel tunnel connecting Mexico to Arizona has been discovered by authorities, a grim reminder of the violent reality that lies beneath the sand. The tunnel was found during a ...
Tulsa Foundation for Architecture offers tours of Tulsa's secret downtown tunnels
TULSA, Okla. — Lyndsey Neal Kuykendall is the curator for the Tulsa Foundation for Architecture (TFA) said touring Tulsa's ...