Rachel Chang is a travel and pop culture journalist who contributes to Travel + Leisure, Condé Nast Traveler, Lonely Planet, and more. Vietnam is home to the world's largest cave. It's so vast that it ...

A rare bite into the past. The fossilized tooth of a newly discovered ancient shark species – dating back about 340 million years – has been unearthed in the world’s largest cave system, officials ...

With over 4 miles and seven stories full of unique rock formations and water streams, this underground cavern is one of the ...

Researchers may have discovered the world's biggest spider web, a massive subterranean structure spanning over 100 square meters in a sulfur cave on the Albania–Greece border. The multilayered web ...

Learn more about how scientists uncovered an unlikely community of arachnids in Europe’s Sulfur Cave and why these spiders ...