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Slovenia is perhaps as beautiful under the ground as it is above. The country is famous for its vast network of caves ...

Slovenia is a hiker's paradise. In this small country, you will find over 10,000 km (6,200 miles) of hiking trails.

A tourism brochure for New Zealand's Waitomo Caves from 1928 What’s waiting for us within the mysterious depths of a cave? It’s been the stuff of legend and campfire stories for centuries.

PHOTO: A cave opening in the Karst region of Slovenia. (photo by Gary Crow) Who said all the fun has to be had above ground? Slovenia's Karst region is home to a fascinating underground world, ...

Here is my personal countdown, in no particular order, of the best things I did while on a trip to Slovenia. Postojna Caves are one of the longest cave networks in Europe, measuring at 24.34 km ...

Arizona has numerous famous caves — some readily open to the public, some not. Some, like Kartchner Caverns, are renowned for their stunning beauty, filled with awe-inspiring formations that ...