Caves don’t give up their secrets easily. Lack of light, treacherous passageways, and their knack for remaining hidden make them some of the least explored places on earth.

You may think the Philippines is just a place to go for idyllic beaches, but there is so much more to this intriguing archipelago than sun and fun. If you're looking for a trip beyond blue water an...

Situated in a narrow valley above the tumultuous Arpa River, the Areni-1 cave complex in the Armenian province of Vayots Dzor is seldom visited, yet holds some of the oldest and most fascinating ar...