Tourism is surging in many places around the world—swarmed national parks, throngs of visitors amassing in churches and ...

Using advanced technology that analyzes tiny gas bubbles trapped in crystals, a team of scientists led by Cornell University ...

From saline basins to remote deserts, the deepest points on each continent reveal a fascinating interplay of geology, climate ...

At a site known as Natural Trap Cave, a team of scientists are rappelling down to uncover the secrets of what the Earth was ...

Beneath the Caucasus mountains Russian cavers made a terrifying discovery: blind creatures, freezing waters, and something far worse—suspended in the dark.

This cave absolutely blew us away. In this video, we explore what might be the largest river cave we've ever encountered – a ...

We rank the 23 Best Underrated Travel Destinations in the World. See which places our readers like the best, and vote for ...