Imagine standing at the rim of a vast caldera, the earth beneath your feet formed by unimaginable forces millions of years ...

SUPERSTITION MOUNTAINS, Ariz. — Spring in Arizona is prime time for hiking — before the summer sun kicks into full blast. And if you're looking to squeeze in one more scenic adventure, the Wave Cave ...

Snibs Cave near Ballantrae - Easter Walk Snib's Cave Near this coastal cave stands a small memorial to the hermit who made it his home for three decades. About Bennane Cave, or Snib's Cave, can be ...

Oxford researchers have unearthed a cosmic surprise showing that the hydrogen needed for water was embedded in the very rocks ...

Learn more about the Middle Island Sinkhole, an under water sinkhole with no oxygen.

Looking for blind cavefish in San Luis Potosí, biologist Luis Espinasa and his team accidentally found the remains of giant ...

UNESCO designated 16 new geoparks, bringing the total number of sites in the UNESCO Global Geoparks Network to 229 in 50 countries. The network ...