Dinosaur footprints found on an Alaskan cliff, tears of blood discovered on Vlad the Impaler's letters, ancient Roman ship unearthed in Serbia.

Megalodon tooth found by 13-year-old boy in England, 8,000-year-old dolphin bones unearthed in Scotland, 17th-century grave with anti-vampire countermeasures discovered in Poland.

Iron Age warrior woman identified in England, ancient Medusa mosaic uncovered in Spain, medieval sundial found in Germany.

Theater of Nero found beneath a hotel site in Rome, oldest known glass workshop discovered in the Czech Republic, ancient "sounding" dance floor unearthed in Peru.

Bronze Age charioteer unearthed in Siberia, giant prehistoric handaxes found in England, possible wreck of 19th-century slave ship located near Brazil.

Civil War-era coin trove unearthed in Kentucky, 1,100-year-old Viking burial found in Norway, possible oldest settlement in North America discovered in Oregon.

Maya "portal to the underworld" found in Mexico, earliest evidence of human cannibalism discovered in Kenya, ancient pizza fresco unearthed in Pompeii.

Ancient Medusa medal uncovered near Hadrian's Wall, unnerving doodles found in Henry VIII's prayer book, Stonehenge-like site discovered in the Netherlands.

Ancient Roman mausoleum found in London, 150-year-old Māori canoe discovered in New Zealand, 3,000-year-old mummy unearthed in Peru.

Ancient mosaic found in the Gulf of Naples, "vampire" burials uncovered in Poland, bulldog-like breeding discovered among ancient Romans.