In the small Chinese village of Nuanquan, they make fireworks displays by throwing molten iron against the wall, which causes it to explode in a shower of sparks.
For the past 30 years, Wang De has been practicing the ancient art of Da Shuhua, a 500-year-old tradition that first began with blacksmiths in the Nuanquan village of China. Wanting a way to celebrate Chinese New Year, but without the means to afford traditional fireworks, these blacksmiths devised a new form of entertainment. By tossing molten iron against the walls, they created beautiful showers of sparks, beginning a practice that would soon become a part of their cultural heritage. Now, it's a special part of Nuanquan's legacy as there's no place else on Earth to witness the fiery spectacle.
This would be something to see in person — thousands of tiny sparks flying around at great speeds is exactly the sort of thing that compressed online video doesn't depict that well.