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

An curved arrow pointing right. Steve Humble dreamed of filling his giant house with secret passageways, but when he looked for a company to build them, he couldn't find one. So he started a ...

A technological investigation at Sforza Castle found that it does in fact hold underground passages once described by ...

Ground scans beneath the medieval fortification of Milan's Sforza Castle have revealed numerous hidden passages. Some of the tunnels were likely used by the military, while another once linked to ...

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 ...

The survey revealed the presence of numerous passages under the Castle, in the area once covered by the "Ghirlanda" or outer wall, some of which could be linked to secret military passages ...