Researchers may have found the hidden tunnels beneath a castle in Milan that Leonardo da Vinci sketched in 1495.

An early-medieval castle in the Lake District area of England ... “The castle is a unique relic from the medieval period tucked in a breath-taking landscape,” said Guy Bradshaw, senior ...

It wasn't until the early 1900s that a lieutenant colonel bought the land the castle occupied and rebuilt Eilean Donan from the ground up. Inside the castle, you'll find period decor, as well as ...