Medieval synagogue unearthed in Spain, Leonardo da Vinci's gravity sketches discovered, 500-year-old spice trove found.

Ancient tavern unearthed in Iraq, secrets of Impressionist masterpieces unlocked, Henry VIII pendant uncovered in England.

Al Capone's sunken party boat photographed in Michigan, fourth-century sword uncovered in Japan, ancient Hercules statue unearthed in Rome.

Ancient Hun warrior's tomb uncovered in Romania, lost van Dyck found in a New York barn, prehistoric whale skull discovered in Maryland.

"Replica" sword found to be genuine Bronze Age artifact, one of the world's oldest runestones discovered, ancient Egyptian burial uncovered with 142 dead dogs.

Bronze Age wishing well uncovered in Germany, prehistoric Megalodon tooth found in Maryland, Roman house restored in Pompeii.

Writing system dating back 20,000 years uncovered, medieval murder victim's face reconstructed, prehistoric Australian cave art vandalized.

Medieval shipwreck found in a Norwegian lake, Neolithic sacrifice victim unearthed in Denmark, knight with an elongated skull discovered in Notre Dame.

Ancient Greek projectile unearthed in Israel, 19th-century shipwreck appears on a Florida beach, Roman coin found to depict a lost emperor.

Viking treasure found in Norway, Maya masks unearthed in Mexico, animal bones discovered beneath the Roman Colosseum.

Fans of the seasonal comedy classic "Groundhog Day" have wondered for decades how long Phil Conners spent reliving the same day — and there’s still no definitive answer.