Roguelike beat-'em-up Lost Castle 2 just dropped its biggest free update yet, and you can play the Steam Early Access game with friends.

Miners once lived and worked in Humberstone saltpeter works. Now it's a ghost town and UNESCO World Heritage Site. Photos ...

Just an hour west of Saint Louis, you can find one of the US's grandest cave systems - and a former hideout of the infamous Jesse James.

About 1,200 years ago, the Chinese set fire to bamboo tubes filled with gunpowder – and ever since, fireworks have been used ...

There would be no bright and colorful fireworks without rocks and minerals. A firework is produced by launching a shell containing fuel and a color mix high into the air, where it explodes. This ...