Mastodon tusk reveals evidence of bloody clash, mass grave of Iron Age frogs uncovered, 500-year-old skeletons found under Irish pub.

Lost Renaissance masterpiece found in England, medieval saber found in Greece, hidden cities uncovered in the Amazon.

Bronze Age sunken city emerges from the Tigris River, ancient paintings found beneath layers of bird poop in Egypt, dozens of Spanish colonists' skeletons uncovered in Peru.

Ancient phallus carving found at Hadrian's Wall, Bronze Age funeral pyre uncovered in Italy, Roman "service station" unearthed in England.

Ancient human ancestor's tooth found in Laos, Greek treasures unearthed in Ukraine, pregnant ichthyosaur uncovered in Chile.

"Road to Atlantis" uncovered in the Pacific, ancient Egyptian ibis mummy found in a closet at Cornell, centuries-old fertility complex unearthed in Turkey.

Ancient Roman statue found at Goodwill, skulls from ritual sacrifice unearthed in Mexico, largest North American cave art discovered.

Crusades-era hand grenades discovered, protohuman hominids of Indonesia reportedly sighted, ancient Roman sandal unearthed.

As Native American tribes were increasingly wiped out at the turn of the 20th century, a few photographers were determined to preserve their history.

New evidence about what caused Jesus' death uncovered, record-breaking underground city excavated, dinosaur killed the day the asteroid struck unearthed.