Trek into the depths of the cave where 17,000-year-old paintings exist alongside 400-year-old graffiti.

See replicas of Europe's most famous cave paintings and even some of the animals that feature in the art.

This beautiful "lagoon" is actually a toxic soup filled with cars, carcasses, and trash. When warnings couldn't stop people from going for a dip, the town dyed it black.

The largest treasure hoard in Europe is contained in a castle that was bombed out during World War II.