A geologist claims to have identified the landscape in Leonardo Da Vinci’s famous work as being that of a particular city in northern Italy, but some experts disagree

Stefan Guzy has scoured archives from the Holy Roman Empire and believes he has traced back the ownership of the mysterious cipher book

The two manuscripts were returned in a pink gift bag with a message that read: "Happy Easter X"

Steve Kough also stole three paintings from the Detroit Institute of Arts in 1982—while on trial for conspiracy to distribute marijuana

Another unattributed metal structure has sprung up from seemingly nowhere—this time on a Romanian mountainside

A German Egyptologist believes he has cracked the code to the enigmatic 15th century illustrated book—but many others have made the same claim in the past and failed