Most people think of visiting big cities, national parks, and beaches when they plan a U.S. trip. There’s hardly anyone who’s ...

If you’ve ever been on a cave tour where the guide shines a black light, you’ve seen the walls and formations glow. The stunning fluorescence is often the result of impurities trapped in ...

Discovered in 1999 inside an abandoned mine in Southern Spain, Pulpí Geode is the largest crystal 'cave' of its kind in the world. But what exactly is a geode and how do crystals form inside them?

In Wind Cave, the team discovered that manganese-rich water shaped the cave and formed unique pink-glowing zebra calcites. Sebree hypothesizes that the fracturing of these weaker calcite ...

Imagine swimming in crystal-clear waters ... Visitors can take small boats into the cave and experience its glowing waters ...

Crystal Cave, the ancient marble cavern at the end of a steep half-mile hike in Sequoia National Park, is slated to reopen to ...

Crystal Cave is reopening after a four-year closure, inviting visitors to marvel at its underground splendor. Tickets for ...

Glowing Cave Fish in Zelda: Tears of the Kingdom is an item that can be consumed or used in cooking meals to boost health, stamina, or add temporary status effects. When cooked, the Glowing Cave ...