Watch the full journey of creating a stunning swimming pool with a hidden underground passage! 🏊‍♂️🌿 Using only natural ...

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

One of the planet’s largest underground passages, it holds more than two ... tunnels that slope relatively straightforwardly down—natural caves are nonlinear and ex-pand and contract according ...

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 ...