But have you ever wondered what they looked like before they were excavated, when the jungle had taken root and trees masked the structures beneath? Take a journey back through time, and examine ...

It was two weeks before Orche saw her boyfriend again. Our expedition, however, had come prepared for a long siege, bringing more than five tons of gear to the cave. Ever since 1956, when ...

Here’s everything you need to know before visiting Goblin Valley State Park in Utah ... “It takes you behind the valley through a cave feature with a couple of windows to the sky.

Credit: NPS Illustration / Benji Paysnoe Researchers collecting fossils deep inside Kentucky's Mammoth Cave have uncovered the remains of a never-before-seen species — an absolutely tiny ancient ...