Penn’s Cave in Centre Hall, Pennsylvania offers exactly that otherworldly experience—America’s only all-water cavern that you ...

Traveling around Eagle County, it is easy to wonder about the interesting geological features that dot the landscape. While ...

The plentiful, dramatic formations at Apostle Islands National Lakeshore that lured 138,000 ice cave trekkers to northern Wisconsin in 2014 haven't been accessible in recent years because of ...

Native American legends surround Penn’s Cave, including the tragic tale of a young Seneca brave named Malachi and his forbidden love for a French trader’s daughter named Nita-nee (from whom Mount ...

From surreal limestone formations to crystal-clear rivers, Vietnam’s natural landscapes are a sight to behold. This journey ...

Travelers look beyond the usual summer spots that are cooler than the beach, with underground attractions and cavern escapes ...

Visakhapatnam: Large-scale development works are set to begin in July at the 150-million-year-old Borra Caves near Araku Valley in Alluri Sitarama Raj.

Deep beneath a Mexican mine lies the Cave of Crystals, a breathtaking cavern filled with colossal selenite formations. Discovered in 2000, its extreme ...

CaveCreek4.jpg Penelope Donahue points out fossils in the limestone of the opening of Cave Creek Cave while on a June 8 hike in Santa Fe National Forest. The limestone, which is around 300 million ...

From wind-sculpted arches to ancient sandstone caves, these hikes lead to some of the world’s most jaw-dropping natural rock formations.

While exploring a massive limestone mine, we stumbled upon something totally unexpected – a natural cave system hidden within the man-made tunnels. In this video, we follow the path from rough ...