Spelunking, or cave exploring, is an adventure of a lifetime for those who wish to discover the hidden wonders beneath the ...

While Arizona is famous for its stunning landscapes and dramatic rock formations, some of the best things to see here are underground. Arizona has numerous famous caves — some readily open to ...

Scientists have found ancient nail tooth shark fossils deep inside Mammoth Cave in Kentucky, revealing new information about ...

Human remains found deep in a Polish cave bear unmistakable signs of butchery. These people came from the same stock as those who created the famous cave paintings at Lascaux, France and elsewhere ...

This world-famous natural wonder, which is situated about 120 miles south of Auckland, features a boat ride through Glowworm Grotto, where thousands of glowworms illuminate the cave ceiling.