The lack of clothing is only part of these nude festivals' appeal.

Mysterious stone balls unearthed at Neolithic Scottish tomb, 800-year-old Merlin texts translated, Napoleon's hat containing traces of his DNA goes up for auction.

9,000-year-old beer residue unearthed in China, Neolithic cemetery uncovered in Transylvania, rare collection of early images by Black photographers acquired by the Smithsonian.

Ancient statue of a Greek goddess found in Turkey, prehistoric whale species discovered in Egypt, and Al Capone's favorite gun put up for auction.

Ancient Chinese couples' remains found locked in an eternal embrace, perfectly-preserved bodies discovered at Pompeii, prehistoric turtle egg unearthed with an embryo inside.

Wild West opera sets uncovered, macabre Roman key handle found, prehistoric dragon-like pterosaur unearthed.

Cache of Nazi artifacts found behind wall of German house, historical graves uncovered by grazing goats, Viking warrior found to be intersex.

Trove of Jurassic starfish uncovered, 890-million-year-old "spongelike" fossils found, Roman amphitheater unearthed.

Sunken city near Venice discovered, ancient Roman border stone found, intact Visigoth sarcophagus unearthed.

Possible Michelangelo fingerprint discovered, cathedral linked to lost Nubian kingdom unearthed, ancient Egyptian slab filled with hieroglyphics found.