Medieval ice skates made of horse bones found in Russia, Ice Age animal remains unearthed in England, ancient Roman mosaic uncovered in London.

Remnants of ancient psychedelic beer found in Peru, love note sewn with human hair put on display in London, prehistoric crocodile found with a dinosaur in its stomach.

Headless Roman skeletons found in England, 1980s serial killer identified in Oregon, ancient monument accidentally desecrated in Scotland.

Ancient Greek warriors' helmets unearthed in Italy, spines threaded around poles found in Peru, headless medieval horse uncovered in Germany.

Pre-Columbian coyote-man statue recovered by Mexico after long dispute, ninja weapon prototypes found in Japan, youngest known Roman amphitheater found in Switzerland.

Ancient Chinese warrior's tomb found with cannabis inside, investigation names man who betrayed Anne Frank, Russian "scepters" turn out to be beer-drinking straws.

Prehistoric "sea dragon" unearthed in England, Roman-era coins found by a badger, and the truth about Vikings' helmets.

Scotland considers pardon for people accused of witchcraft centuries ago, ancient toilet uncovered in Israel, medieval runes found in Norway.

Aokigahara Forest has always haunted the poetic imagination. Long ago, it was said to be the home of yūrei, Japanese ghosts. Now it's the final resting place of as many as 100 suicide victims every year.

Medieval cross with strange runes uncovered, woolly mammoth's extinction timeline upended, secrets of the largest flying dinosaur unlocked.