Malta is home to some of the oldest and arguably most mysterious megalithic structures known to man, older than the Pyramids and Stonehenge.

Fascinating secrets continue to be revealed about the 5,000-year-old stone circle at Stonehenge, including some sophisticated design elements.

It's long seemed like Stonehenge harbors many secrets, and it's not keen on giving them up. But a rare lunar event might finally give us some answers.