Watch as we handcraft a one-of-a-kind secret underwater house, complete with a hidden underground passage, using only ...

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

Italy's Sforza Castle includes a underground passage that linked the Duke of Milan to his wife’s tomb.

Researchers recently uncovered hidden structures beneath Milan's fifteenth-century Sforza Castle, including underground passages and secret walkways that were previously unknown. The findings were ...

A new geophysical survey has revealed several hidden passageways beneath the medieval ... of the subsurface under the castle—and all the underground structures hidden within.

A lost sketch by Leonardo da Vinci has led to the discovery of hidden tunnels beneath Sforza Castle, revealing secrets buried ...

The underground spaces that Leonardo described ... bringing to light unknown walkways and ideas for further studies on secret passages,” said Francesca Biolo, one of the university’s ...

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

Explore the subterranean world of Seattle's past on a guided tour through the underground city's original sidewalks and ...

This project, developed in collaboration with the castle itself, has identified a network of underground passages that may have ... ordered the construction of a secret passage linking the castle to ...